Crash on clearDatabase with Bravia TVs

When calling clearDatabase the medialibrary crashes on Bravia TVs.

I don't have any context on how users crash, but I was able to reproduce it by clearing the database in the settings, and clearing it again, while it was discovering. Adding a condition on vlc-android side not to start clearDatabase while the medialibrary is working stops it from happening, but it's a bandage.

2022-01-07 15:06:53.667 1144-1144/? E/hwcomposer: layer2 is surface, so hwc return false
2022-01-07 15:06:53.683 1144-1144/? E/hwcomposer: layer2 is surface, so hwc return false
2022-01-07 15:06:53.993 16934-16934/? A/DEBUG: *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
2022-01-07 15:06:53.994 16934-16934/? A/DEBUG: Build fingerprint: 'Sony/SVP4KDTV15_EU/SVP-DTV15:7.0/NRD91N.S28/5.417:user/release-keys'
2022-01-07 15:06:53.994 16934-16934/? A/DEBUG: Revision: '0'
2022-01-07 15:06:53.994 16934-16934/? A/DEBUG: ABI: 'arm'
2022-01-07 15:06:53.994 16934-16934/? A/DEBUG: pid: 4076, tid: 6726, name: DefaultDispatch  >>> org.videolan.vlc.debug <<<
2022-01-07 15:06:53.994 16934-16934/? A/DEBUG: signal 6 (SIGABRT), code -6 (SI_TKILL), fault addr --------
2022-01-07 15:06:53.997 16934-16934/? A/DEBUG: Abort message: '/usr/local/google/buildbot/src/android/ndk-release-r21/external/libcxx/../../external/libcxxabi/src/abort_message.cpp:72: abort_message: assertion "terminating with uncaught exception of type medialibrary::sqlite::errors::DatabaseBusy: Failed to run request [SELECT name FROM sqlite_master WHERE type='table' AND name NOT LIKE '%#_%' ESCAPE '#']: database is locked(5)" failed'
2022-01-07 15:06:53.997 16934-16934/? A/DEBUG:     r0 00000000  r1 00001a46  r2 00000006  r3 00000008
2022-01-07 15:06:53.997 16934-16934/? A/DEBUG:     r4 81e7f978  r5 00000006  r6 81e7f920  r7 0000010c
2022-01-07 15:06:53.997 16934-16934/? A/DEBUG:     r8 826e1778  r9 7f923500  sl 00000000  fp 81e7dc98
2022-01-07 15:06:53.997 16934-16934/? A/DEBUG:     ip 00000000  sp 81e7d4d8  lr a59ef447  pc a59f1ca4  cpsr 200b0010
2022-01-07 15:06:54.016 16934-16934/? A/DEBUG: backtrace:
2022-01-07 15:06:54.016 16934-16934/? A/DEBUG:     #00 pc 00049ca4  /system/lib/libc.so (tgkill+12)
2022-01-07 15:06:54.016 16934-16934/? A/DEBUG:     #01 pc 00047443  /system/lib/libc.so (pthread_kill+34)
2022-01-07 15:06:54.016 16934-16934/? A/DEBUG:     #02 pc 0001d745  /system/lib/libc.so (raise+10)
2022-01-07 15:06:54.016 16934-16934/? A/DEBUG:     #03 pc 00019291  /system/lib/libc.so (__libc_android_abort+34)
2022-01-07 15:06:54.016 16934-16934/? A/DEBUG:     #04 pc 00017034  /system/lib/libc.so (abort+4)
2022-01-07 15:06:54.016 16934-16934/? A/DEBUG:     #05 pc 0001b73f  /system/lib/libc.so (__libc_fatal+22)
2022-01-07 15:06:54.016 16934-16934/? A/DEBUG:     #06 pc 0001948b  /system/lib/libc.so (__assert2+18)
2022-01-07 15:06:54.016 16934-16934/? A/DEBUG:     #07 pc 000645cb  /data/app/org.videolan.vlc.debug-1/lib/arm/libc++_shared.so
2022-01-07 15:06:54.016 16934-16934/? A/DEBUG:     #08 pc 00064745  /data/app/org.videolan.vlc.debug-1/lib/arm/libc++_shared.so
2022-01-07 15:06:54.016 16934-16934/? A/DEBUG:     #09 pc 0006bdf9  /data/app/org.videolan.vlc.debug-1/lib/arm/libc++_shared.so
2022-01-07 15:06:54.016 16934-16934/? A/DEBUG:     #10 pc 0006b6a7  /data/app/org.videolan.vlc.debug-1/lib/arm/libc++_shared.so
2022-01-07 15:06:54.016 16934-16934/? A/DEBUG:     #11 pc 0006b66f  /data/app/org.videolan.vlc.debug-1/lib/arm/libc++_shared.so (__cxa_throw+74)
2022-01-07 15:06:54.016 16934-16934/? A/DEBUG:     #12 pc 00217f9c  /data/app/org.videolan.vlc.debug-1/lib/arm/libmla.so
2022-01-07 15:06:54.016 16934-16934/? A/DEBUG:     #13 pc 0022dc7c  /data/app/org.videolan.vlc.debug-1/lib/arm/libmla.so (_ZN12medialibrary6sqlite9Statement3rowEv+292)
2022-01-07 15:06:54.016 16934-16934/? A/DEBUG:     #14 pc 00227b18  /data/app/org.videolan.vlc.debug-1/lib/arm/libmla.so (_ZN12medialibrary6sqlite5Tools10listTablesEPNS0_10ConnectionE+136)
2022-01-07 15:06:54.016 16934-16934/? A/DEBUG:     #15 pc 001fe194  /data/app/org.videolan.vlc.debug-1/lib/arm/libmla.so (_ZN12medialibrary12MediaLibrary15deleteAllTablesEPNS_6sqlite10ConnectionE+28)
2022-01-07 15:06:54.016 16934-16934/? A/DEBUG:     #16 pc 0020303c  /data/app/org.videolan.vlc.debug-1/lib/arm/libmla.so (_ZN12medialibrary12MediaLibrary16recreateDatabaseEv+56)
2022-01-07 15:06:54.016 16934-16934/? A/DEBUG:     #17 pc 00215a64  /data/app/org.videolan.vlc.debug-1/lib/arm/libmla.so (_ZN12medialibrary12MediaLibrary13clearDatabaseEb+148)
2022-01-07 15:06:54.016 16934-16934/? A/DEBUG:     #18 pc 016c3049  /data/app/org.videolan.vlc.debug-1/oat/arm/base.odex (offset 0x1590000)