powerpc: Limit hugetlbfs support to PPC64 Book-3S machines

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/fs/Kconfig b/fs/Kconfig
index d4bf8ca..f93d0ed 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -135,7 +135,7 @@
 
 config HUGETLBFS
 	bool "HugeTLB file system support"
-	depends on X86 || IA64 || PPC64 || SPARC64 || (SUPERH && MMU) || \
+	depends on X86 || IA64 || PPC_BOOK3S_64 || SPARC64 || (SUPERH && MMU) || \
 		   (S390 && 64BIT) || SYS_SUPPORTS_HUGETLBFS || BROKEN
 	help
 	  hugetlbfs is a filesystem backing for HugeTLB pages, based on