make: config -- Allow to pass libraries in try-cc

For libbsd testing.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

scripts/utilities.mak

@@ -3,5 +3,5 @@
 try-cc = $(shell sh -c						  		\
 	'TMP="$(OUTPUT)$(TMPOUT).$$$$";				  		\
 	 echo "$(1)" |						  		\
-	 $(CC) $(DEFINES) -x c - $(2) -o "$$TMP" > /dev/null 2>&1 && echo y;	\
+	 $(CC) $(DEFINES) -x c - $(2) $(3) -o "$$TMP" > /dev/null 2>&1 && echo y;	\
 	 rm -f "$$TMP"')