obu: ignore operating_parameter_info in new sequence check

The operating_parameter_info is allowed to change in a single sequence.
Reorder Dav1dSequenceHeader so the check for new sequence can still be
done with memcmp and pffsetof.
21 jobs for master in 6 minutes and 11 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Style
passed #258975
amd64 debian
style-check

00:00:23

 
  Build
passed #258976
amd64 debian
build-debian

00:00:38

passed #258984
debian aarch64
build-debian-aarch64

00:01:24

passed #258985
debian aarch64
build-debian-aarch64-clang-5

00:01:03

passed #258988
debian armv7
build-debian-armv7

00:01:40

passed #258989
debian armv7
build-debian-armv7-clang-5

00:01:15

passed #258977
amd64 debian
build-debian-static

00:00:41

passed #258987
debian aarch64
build-debian-werror

00:00:34

passed #258978
amd64 debian
build-debian32

00:00:37

passed #258986
macos
build-macos

00:00:34

passed #258990
amd64 debian
build-ubuntu-snap

00:01:01

passed #258982
amd64 debian
build-win-arm32

00:00:28

passed #258983
amd64 debian
build-win-arm64

00:00:38

passed #258979
amd64 debian
build-win32

00:00:51

passed #258980
amd64 debian
build-win32-unaligned-stack

00:00:36

passed #258981
amd64 debian
build-win64

00:00:49

 
  Test
passed #258991
amd64 debian
test-debian

00:00:50

passed #258992
amd64 debian
test-debian-asan

00:02:40

passed #258993
amd64 debian
test-debian-msan

00:01:10

passed #258994
amd64 debian
test-debian-ubsan

00:01:33

passed #258995
amd64 debian
test-win64

00:00:49