Although the CG6 framebuffer is detected and initialized, without this
patch all it displays is a blank screen. Tested on an Ultra 1 with a
TGX+.

Originally from Bob Breuer for the CG14.
Signed-off-by: Adam Kropelin <akropel1@rochester.rr.com>
Acked-by: William Irwin <wli@holomorphy.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>