dnsmasq: use awk instead of nawk

package/dnsmasq/dnsmasq.mk

@@ -43,7 +43,7 @@ else
 	$(SED) 's^.*#define HAVE_DBUS.*^/* #define HAVE_DBUS */^' \
 		$(DNSMASQ_DIR)/src/config.h
 endif
-	$(MAKE) CC=$(TARGET_CC) CFLAGS="$(TARGET_CFLAGS)" \
+	$(MAKE) CC=$(TARGET_CC) CFLAGS="$(TARGET_CFLAGS)" AWK=awk \
 		COPTS='$(DNSMASQ_COPTS)' PREFIX=/usr -C $(DNSMASQ_DIR)
 	touch -c $@