attr: update to 20141020, add license files

Signed-off-by: Maxim Storchak <m.storchak@gmail.com>

utils/attr/Makefile

@@ -8,8 +8,8 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=attr
-PKG_REV:=50fc862d69984089ce09138b3350ee7762290403
-PKG_VERSION:=20140610
+PKG_REV:=c4a7fdbcc109d6e8b465a427c714926fcb85c750
+PKG_VERSION:=20141020
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
@@ -21,6 +21,7 @@ PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
 PKG_MAINTAINER:=Maxim Storchak <m.storchak@gmail.com>
 PKG_INSTALL:=1
 PKG_LICENSE:=LGPL-2.1 GPL-2.0
+PKG_LICENSE_FILES:=doc/COPYING doc/COPYING.LGPL
 
 include $(INCLUDE_DIR)/package.mk