[media] coda: Simplify handling of codec list

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
[media] coda: Limit decoding source buffer size to half the ring buffer

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
[media] coda: Set DEC_SEQ_INIT_ESCAPE flag when parsing the header

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
[media] coda: Allow parsing of bitstream header without capture queue started

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
[media] coda: Quiesce debug output of firmware loading

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
[WiP][media] Add new driver for CODA multi-standard video codec IP

This is a work in progress, so the driver is not supposed to be
operational yet.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>