uclibc: add license information

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/uclibc/uclibc.mk

@@ -6,6 +6,8 @@
 
 UCLIBC_VERSION = $(call qstrip,$(BR2_UCLIBC_VERSION_STRING))
 UCLIBC_SOURCE ?= uClibc-$(UCLIBC_VERSION).tar.bz2
+UCLIBC_LICENSE = LGPLv2.1+
+UCLIBC_LICENSE_FILES = COPYING.LIB
 
 ifeq ($(BR2_UCLIBC_VERSION_SNAPSHOT),y)
 UCLIBC_SITE = http://www.uclibc.org/downloads/snapshots