ARM/ARM64: config: enable DRM_LOAD_EDID_FIRMWARE

ARM/ARM64: config: enable DRM_LOAD_EDID_FIRMWARE

Enable CONFIG_DRM_LOAD_EDID_FIRMWARE from tizen defconfigs to
support drm.edid_firmware paremeter.
Adding "drm.edid_firmware=edid/1920x1080.bin" to cmdline makes
all connected display connector has the 1920x1080 mode.

Kernel has prebuilt edids, 800x600.bin, 1024x768.bin,
1280x1024.bin, 1600x1200.bin, 1680x1050.bin and 1920x1080.bin and
to use other mode edids, put custom edid files into path
/lib/firmware/edid/.

Note: to build custom edid binary, please refer tools/edid/.

Change-Id: I7b80f1aa5a0422f4cb8ff8d99584d0cbdbc8ae1e
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>