Apparently, the default qemumips color depth was set to 8 and the colors were not
displayed properly. cirrusfb driver doensn't seem to accept color depth
as a kernel parameter, so we have to do it here.
[YOCTO #4340]
(From OE-Core rev: 876e020be334a9350094dbd1a29b9e49eceed603)
Signed-off-by: Laurentiu Palcu <laurentiu.palcu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>