menuselect: Tweak check for recently run configure.

Recently menuselect has randomly produced an error stating that
configure was just run and make had to be restarted.  I believe this is
due to an incorrect menuselect/Makefile rule.  The original rule
produced an error if makeopts or autoconfig.h were older than
makeopts.in or autoconfig.h.in.  I believe this can create an issue if
makeopts is older than autoconfig.h.in or if autoconfig.h is older than
makeopts.in.  The new rules compare files independently.

Change-Id: Ibca155035fa1392c95e33cbf25f257902abba17b

menuselect/Makefile

@@ -64,7 +64,10 @@ all: $(ALL_TGTS)
 
 $(OBJS) $(C_OBJS) $(N_OBJS) $(G_OBJS) $(M_OBJS): autoconfig.h menuselect.h
 
-makeopts autoconfig.h: autoconfig.h.in makeopts.in
+makeopts: makeopts.in
+autoconfig.h: autoconfig.h.in
+
+makeopts autoconfig.h:
 	@./configure $(CONFIGURE_SILENT)
 	@echo "****"
 	@echo "**** The configure script was just executed, so 'make' needs to be"