CONFIG_ATYFB_XL_INIT option is broken for a long time.  It will always cause a
kernel hang.

Since no one has fixed this problem for some time now, remove it from atyfb.
Signed-off-by: NAntonino Daplas <adaplas@pol.net>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>