This fixes the following error on x86:

In function `yadif_filter_line_ssse3.lto_priv.4':
modules/video_filter/deinterlace/yadif_template.h:262:
 undefined reference to `pw_1'
relocation R_X86_64_PC32 against undefined symbol `pw_1' can not be used
when making a shared object; recompile with -fPIC

This also fixes run-time with compilers other than MSVC and GCC.