lldpd: enable LTO

Size difference on mips_4kec:
W/o LTO: 139674
W/ LTO:  120196

Signed-off-by: Stijn Tintel <[email protected]>
Suggested-by: Lucian Cristian <[email protected]>

package/network/services/lldpd/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=lldpd
 PKG_VERSION:=1.0.9
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://media.luffy.cx/files/lldpd
@@ -110,4 +110,7 @@ CONFIGURE_ARGS += \
 	$(if $(CONFIG_LLDPD_WITH_SNMP),--with-snmp,) \
 	$(if $(CONFIG_USE_GLIBC),,--without-libbsd)
 
+TARGET_CFLAGS += -flto
+TARGET_LDFLAGS += -flto
+
 $(eval $(call BuildPackage,lldpd))