st/vaapi: fix vaapi VC-1 simple/main corruption v2
st/vaapi: fix vaapi VC-1 simple/main corruption v2

Apply the start code fix only to advanced profile.

v2 (chk): add commit message

Signed-off-by: Boyuan Zhang <8cfb4a4fd3f1d146f6a03a94195b31d5559cee7b@amd.com>
Reviewed-by: Christian König <c7ea837d7a46effe4232b086213468b8b31643bf@amd.com>
Reviewed-by: Alex Deucher <08dc22c6156113f2deff178e35e3ed9b24d6af9e@amd.com>
Cc: "10.6 11.0" <59f39c0db42d4479a46b02d4d2bc11120e37bb44@lists.freedesktop.org>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler