libfreetype: bump up to the latest version v.2.7.1

Update the freetype font library to v.2.7.1.

Signed-off-by: Val Kulkov <val.kulkov@gmail.com>

libs/freetype/Makefile

@@ -8,12 +8,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=freetype
-PKG_VERSION:=2.7
+PKG_VERSION:=2.7.1
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:=@SF/freetype
-PKG_MD5SUM:=be4601619827b7935e1d861745923a68
+PKG_HASH:=3a3bb2c4e15ffb433f2032f50a5b5a92558206822e22bfe8cbe339af4aa82f88
 
 PKG_LICENSE:=FTL GPL-2.0 MIT ZLIB
 PKG_LICENSE_FILES:=docs/LICENSE.TXT docs/FTL.TXT docs/GPLv2.TXT src/bdf/README src/pcf/README src/gzip/zlib.h