v4l2_codec2: Remove duplicated HalPixelFormat and InputCodec types.

This CL removes the duplicate HalPixelFormat and InputCodec types in
common.h that are also present in VideoTypes.h.

VideoTypes.h is moved to the common/ folder so it can also be used by
other classes.

note: Submit together with ag/12467730

Bug: 143333813
Test: tast run $HOST arc.VideoEncodeAccel.h264_vm on hatch-arc-r
Change-Id: I93bca14a3b2f0c4c49104149d5683193554ba3eb