[MIPS] Fix archhelp.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 2cfb21c..6ac8bda 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -681,6 +681,14 @@
 archclean:
 	@$(MAKE) $(clean)=arch/mips/boot
 
+define archhelp
+	echo '  vmlinux.ecoff        - ECOFF boot image'
+	echo '  vmlinux.bin          - Raw binary boot image'
+	echo '  vmlinux.srec         - SREC boot image'
+	echo
+	echo '  These will be default as apropriate for a configured platform.'
+endef
+
 CLEAN_FILES += vmlinux.32 \
 	       vmlinux.64 \
 	       vmlinux.ecoff