[media] coda: dynamic IRAM setup for encoder

This sets up IRAM areas used as temporary memory for the different
hardware units depending on the frame size.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>