[PATCH] m68knommu: fix cache actions for ColdFire 5249, 527x and 528x processors

Add better support for flushing the cache's on some ColdFire processors.
The 5249 cache code is now enabled (it was stubbed out), it really is
needed. Add support for the 527x and 528x families - we only use the
simple instruction cache on them.

Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>