Remove imacfb entirely, merging its DMI table into the (otherwise very
similar) efifb driver. This also adds hardware support for many of the
newer Intel Apple hardware. This has been fairly well tested; we've been
shipping it in Fedora for some time.

Signed-off-by: Peter Jones
Cc: Krzysztof Helt
Cc: Geert Uytterhoeven
Cc: Jaya Kumar
Cc: Ralf Baechle
Cc: Maciej W. Rozycki
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds