packetizer: h264: fix sps parsing for High444
packetizer: h264: fix sps parsing for High444

Old profile, out of spec
ref: https://ffmpeg.org/pipermail/ffmpeg-devel/2012-October/132400.html

new sample:
samples/V-codecs/h264/lossless_timecode_HIGH444_IDC144.h264

xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc