The recent oprofile changes for Motorola e500 broke oprofile for other
CPUs.  This patch fixes the build.

Proper support for the G3/G4 PMCs would be interesting, and making sure the
basic interrupt PC sampling still works on CPUs that don't have supported
PMCs too...
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>