makefiles: typo fixed

s/mantainer/maintainer/

Makefile.rules

@@ -198,12 +198,12 @@ mrproper: clean
 		done \
 	fi
 
-.PHONY: mantainer-cleaan
-mantainer-clean: distclean
+.PHONY: maintainer-clean
+maintainer-clean: distclean
 	-rm -f TAGS tags *.dbg .*.swp
 	-@for r in $(modules) "" ; do \
 		if [ -d "$$r" ]; then \
-			$(MAKE) -C $$r mantainer-clean; \
+			$(MAKE) -C $$r maintainer-clean; \
 		fi ; \
 	 done 
 

Makefile.targets

@@ -13,7 +13,7 @@
 #  2008-06-26  initial version (andrei) 
 #
 
-clean_targets:=	clean proper distclean realclean mantainer-clean clean_libs \
+clean_targets:=	clean proper distclean realclean maintainer-clean clean_libs \
 				clean-all proper-all distclean-all realclean-all \
 				clean_cfg clean_modules_cfg clean-modules-cfg
 doc_targets:=	modules-doc modules-readme README modules-man man \