ppc: include cache-utils.o in BLOCK_OBJS

On ppc, cutils.o needs cache-utils.o or an undefined reference to
qemu_cache_conf results.
Signed-off-by: NMark McLoughlin <markmc@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Makefile

@@ -62,7 +62,7 @@ recurse-all: $(SUBDIR_RULES)
 #######################################################################
 # BLOCK_OBJS is code used by both qemu system emulation and qemu-img
 
-BLOCK_OBJS=cutils.o qemu-malloc.o
+BLOCK_OBJS=cutils.o cache-utils.o qemu-malloc.o
 BLOCK_OBJS+=block-cow.o block-qcow.o aes.o block-vmdk.o block-cloop.o
 BLOCK_OBJS+=block-dmg.o block-bochs.o block-vpc.o block-vvfat.o
 BLOCK_OBJS+=block-qcow2.o block-parallels.o block-nbd.o