powerpc: Enable squashfs as a module

Most distros use it so we may as well enable it and get regular compile
testing.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig
index 535711f..2156e07 100644
--- a/arch/powerpc/configs/ppc64_defconfig
+++ b/arch/powerpc/configs/ppc64_defconfig
@@ -390,6 +390,11 @@
 CONFIG_HFS_FS=m
 CONFIG_HFSPLUS_FS=m
 CONFIG_CRAMFS=m
+CONFIG_SQUASHFS=m
+CONFIG_SQUASHFS_XATTR=y
+CONFIG_SQUASHFS_ZLIB=y
+CONFIG_SQUASHFS_LZO=y
+CONFIG_SQUASHFS_XZ=y
 CONFIG_NFS_FS=y
 CONFIG_NFS_V3=y
 CONFIG_NFS_V3_ACL=y