[PATCH] fbcon: Consolidate redundant code

Lot's of redundant code scattered throughout fbcon.c.  Consolidate them all
into one function, fbcon_update_softback().

Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>