powerpc: Fix module building for gcc 4.5 and 64 bit

Gcc 4.5 is now generating out of line register save and restore
in the function prefix and postfix when we use -Os.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index 3040dac..111da1c 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -12,8 +12,8 @@
 CFLAGS_REMOVE_feature-fixups.o = -pg
 
 obj-y			:= string.o alloc.o \
-			   checksum_$(CONFIG_WORD_SIZE).o
-obj-$(CONFIG_PPC32)	+= div64.o copy_32.o crtsavres.o
+			   checksum_$(CONFIG_WORD_SIZE).o crtsavres.o
+obj-$(CONFIG_PPC32)	+= div64.o copy_32.o
 obj-$(CONFIG_HAS_IOMEM)	+= devres.o
 
 obj-$(CONFIG_PPC64)	+= copypage_64.o copyuser_64.o \