s390: adjust indentation of RELOCS command build step out

Common pattern in non-verbose build output for quiet commands is that the
shorthand of a command including whitespace contains at least eight
characters. Adjust this for the RELOCS command, which comes only with seven
characters.

Before:
  SORTTAB vmlinux
  CC      arch/s390/boot/version.o
  RELOCS arch/s390/boot/relocs.S
  OBJCOPY arch/s390/boot/info.bin

After:
  SORTTAB vmlinux
  CC      arch/s390/boot/version.o
  RELOCS  arch/s390/boot/relocs.S
  OBJCOPY arch/s390/boot/info.bin
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>

arch/s390/boot/Makefile

@@ -112,7 +112,7 @@ $(obj)/vmlinux.bin: vmlinux FORCE
 
 ifndef CONFIG_PIE_BUILD
 CMD_RELOCS=arch/s390/tools/relocs
-quiet_cmd_relocs = RELOCS $@
+quiet_cmd_relocs = RELOCS  $@
 	cmd_relocs = $(CMD_RELOCS) $< > $@
 $(obj)/relocs.S: vmlinux FORCE
 	$(call if_changed,relocs)