powerpc: Free up some CPU feature bits by moving out MMU-related features

Some of the 64bit PPC CPU features are MMU-related, so this patch moves
them to MMU_FTR_ bits.  All cpu_has_feature()-style tests are moved to
mmu_has_feature(), and seven feature bits are freed as a result.

Signed-off-by: Matt Evans <matt@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index ef9756ee..60593ad 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -2663,7 +2663,7 @@
 
 void dump_segments(void)
 {
-	if (cpu_has_feature(CPU_FTR_SLB))
+	if (mmu_has_feature(MMU_FTR_SLB))
 		dump_slb();
 	else
 		dump_stab();