[POWERPC] Split out asm-ppc/mmu.h portions for Freescale Book-E

arch/powerpc still relies on asm-ppc/mmu.h for some 32-bit MMU types.
This patch is another step towards fixing this.  It takes the portions
of asm-ppc/mmu.h related to Freescale Book-E which are still relevant
in arch/powerpc and puts them in a new asm-powerpc/mmu-fsl-booke.h,
included when appropriate from asm-powerpc/mmu.h.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/include/asm-powerpc/mmu.h b/include/asm-powerpc/mmu.h
index dae6a71..9b71403 100644
--- a/include/asm-powerpc/mmu.h
+++ b/include/asm-powerpc/mmu.h
@@ -11,6 +11,9 @@
 #elif defined(CONFIG_44x)
 /* 44x-style software loaded TLB */
 #  include <asm/mmu-44x.h>
+#elif defined(CONFIG_FSL_BOOKE)
+/* Freescale Book-E software loaded TLB */
+#  include <asm/mmu-fsl-booke.h>
 #else
 /* Other 32-bit.  FIXME: split up the other 32-bit MMU types, and
  * revise for arch/powerpc */