AMC: Add unknown missing color formats and add GstVideoMeta

commit e2a4e930

amc: Add GstVideoMeta when decoding without surface

commit a1840181

amc: Fix decoding to system memory on Pixel3

If any color format is unknown amc refuse to decode to system memory and
force gl, I don't know why but that seems intentional. On my Pixel3 I
have those 2 extra color formats.

I'm not sure what I'm doing here, it is probably wrong, but make my use-case work... Expert eyes are needed :)