Fixes up the reporting of the e500 core revision.  Additionally, it changes
the reporting of CPU frequency to match what other PPC systems do.
Signed-off-by: Kumar Gala <kumar.gala@freescale.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>