drm: rcar-du: cmm: Refactor LUT configuration

Simplify the rcar_cmm_setup() functionality by moving the LUT
configuration to its own function rcar_cmm_lut_configure() which can
be called as appropriate from rcar_cmm_setup() and rcar_cmm_disable().

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
1 file changed