Moved CORE_LIB to the last position of the defined linked objects.

The linking order was changed from:
   $(LOCAL_OBJS) $(CORE_LIB) $(OTHER_OBJS) $(OTHER_LIBS)
to:
   $(LOCAL_OBJS) $(OTHER_OBJS) $(OTHER_LIBS) $(CORE_LIB)

This makes more sense, as OTHER_OBJS would rather depend on CORE_LIB,
than the other way around.

Apart from libc and libm, CORE_LIB should conceptually _always_ be
the last lib in the link list, as it is the core (base of everything).
BTW, this was implemented correctly for the 'sam' architecture.

Author: wingunder

Arduino.mk

@@ -1555,7 +1555,7 @@ ifeq ($(findstring sam, $(strip $(ARCHITECTURE))), sam)
 		$(CC) $(LINKER_SCRIPTS) -Wl,-Map=$(OBJDIR)/$(TARGET).map -o $@ $(LOCAL_OBJS) $(OTHER_OBJS) $(OTHER_LIBS) $(LDFLAGS) $(CORE_LIB) -Wl,--end-group
 # otherwise traditional
 else
-		$(CC) $(LDFLAGS) -o $@ $(LOCAL_OBJS) $(CORE_LIB) $(OTHER_OBJS) $(OTHER_LIBS) -lc -lm $(LINKER_SCRIPTS)
+		$(CC) $(LDFLAGS) -o $@ $(LOCAL_OBJS) $(OTHER_OBJS) $(OTHER_LIBS) $(CORE_LIB) -lc -lm $(LINKER_SCRIPTS)
 endif
 
 $(CORE_LIB):	$(CORE_OBJS) $(LIB_OBJS) $(PLATFORM_LIB_OBJS) $(USER_LIB_OBJS)