drm/r128: Use request_firmware() to load CCE microcode

Firmware blob looks like this:
    __be32 datah
    __be32 datal

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --cc drivers/gpu/drm/Kconfig
Simple merge

diff --cc drivers/gpu/drm/r128/r128_cce.c
Simple merge

diff --cc firmware/Makefile
Simple merge

diff --cc firmware/WHENCE
Simple merge

diff --cc firmware/r128/r128_cce.bin.ihex
Simple merge