powerpc: Kconfig updates for FSL BookE HUGETLB 64-bit

Allow hugetlb to be enabled on 64b FSL_BOOK3E.  No platforms enable
it by default yet.

Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/platforms/Kconfig.cputype

@@ -174,14 +174,14 @@ config BOOKE
 config FSL_BOOKE
 	bool
 	depends on (E200 || E500) && PPC32
-	select SYS_SUPPORTS_HUGETLBFS if PHYS_64BIT
 	default y
 
 # this is for common code between PPC32 & PPC64 FSL BOOKE
 config PPC_FSL_BOOK3E
 	bool
 	select FSL_EMB_PERFMON
 	select PPC_SMP_MUXED_IPI
+	select SYS_SUPPORTS_HUGETLBFS if PHYS_64BIT || PPC64
 	default y if FSL_BOOKE
 
 config PTE_64BIT
@@ -309,7 +309,7 @@ config PPC_BOOK3E_MMU
 
 config PPC_MM_SLICES
 	bool
-	default y if (PPC64 && HUGETLB_PAGE) || (PPC_STD_MMU_64 && PPC_64K_PAGES)
+	default y if (!PPC_FSL_BOOK3E && PPC64 && HUGETLB_PAGE) || (PPC_STD_MMU_64 && PPC_64K_PAGES)
 	default n
 
 config VIRT_CPU_ACCOUNTING