Move "ar" flags to config.mk to allow for silent "make -s"
Based on patch by Mike Frysinger, 20 Jun 2006
diff --git a/lib_blackfin/Makefile b/lib_blackfin/Makefile
index 549c8c1..de7114b 100644
--- a/lib_blackfin/Makefile
+++ b/lib_blackfin/Makefile
@@ -37,7 +37,7 @@
 OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
 
 $(LIB):	$(obj).depend $(OBJS)
-	$(AR) crv $@ $(OBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS)
 
 #########################################################################