h264encode: Make it runnable with the latest libva-intel-driver (1.3.2)

Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>
h264encode: check driver supports the RateControl control mode or not

https://bugs.freedesktop.org/show_bug.cgi?id=76720

Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>
avcenc: only support chroma_format_idc with 1

Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>