[PATCH] powerpc: Add missing vmlinux.bin target

With this patch 'make vmlinux.bin' works.  This is needed by
some embedded platforms.  Kumar already added the routines
to actually build the image in arch/powerpc/boot/Makefile.
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/powerpc/Makefile

@@ -148,7 +148,7 @@ all: $(KBUILD_IMAGE)
 
 CPPFLAGS_vmlinux.lds	:= -Upowerpc
 
-BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm uImage
+BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm uImage vmlinux.bin
 
 .PHONY: $(BOOT_TARGETS)