etc: media_codecs: alter video encoder and decoder priority

720P codecs are always used irrespective of the codec capability
required for encode or decode. Reorder to use the 720P codecs only
when the generic encoder and decoder fails.

Signed-off-by: David Rodero <david@codiguiel.net>

Conflicts:
	etc/media_codecs.xml

Change-Id: Ibb4b1cdfde62f9efff3deab8bd97608484522bfe
camera: add support for touch to focus

Signed-off-by: David Rodero <david@codiguiel.net>
camera: prevent sending invalid commands to front camera

Signed-off-by: David Rodero <david@codiguiel.net>

Conflicts:
	libcamera/CameraHardware.cpp

Change-Id: I1e6ad12e86df06179b0d92df567fd81abbe7c645