PPC32: Fix two typos in arch/ppc/boot/

From: Arthur Othieno <a.othieno@bluewin.ch>

arch/ppc/boot/images/Makefile

@@ -13,7 +13,7 @@ $(obj)/vmlinux.bin: vmlinux FORCE
 $(obj)/vmlinux.gz: $(obj)/vmlinux.bin FORCE
 	$(call if_changed,gzip)
 
-quite_cmd_uimage = UIMAGE $@
+quiet_cmd_uimage = UIMAGE  $@
       cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A ppc -O linux -T kernel \
                -C gzip -a 00000000 -e 00000000 -n 'Linux-$(KERNELRELEASE)' \
                -d $< $@

arch/ppc/boot/openfirmware/Makefile

@@ -75,7 +75,7 @@ $(obj)/image.initrd.o: $(obj)/image.o $(images)/ramdisk.image.gz FORCE
 	$(call if_changed,genimage-initrd)
 
 # Create the note section for New-World PowerMacs.
-quit_cmd_mknote  = MKNOTE  $@
+quiet_cmd_mknote = MKNOTE  $@
      cmd_mknote  = $(utils)/mknote > $@
 targets		+= note
 $(obj)/note: $(utils)/mknote FORCE