loudmouth: Fix compilation with uClibc-ng

nls.mk must be included.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

libs/loudmouth/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=loudmouth
 PKG_VERSION:=1.5.3
-PKG_RELEASE:=3
+PKG_RELEASE:=4
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://codeload.github.com/mcabber/loudmouth/tar.gz/$(PKG_VERSION)?
@@ -24,6 +24,7 @@ PKG_BUILD_PARALLEL:=1
 PKG_INSTALL:=1
 
 include $(INCLUDE_DIR)/package.mk
+include $(INCLUDE_DIR)/nls.mk
 
 define Package/loudmouth
   SECTION:=libs