zlib: update to 1.2.10

* Fix bug in deflate_stored() for zero-length input
* Fix bug in gzwrite.c that produced corrupt gzip files

Signed-off-by: Magnus Kroken <mkroken@gmail.com>

package/libs/zlib/Makefile

@@ -8,12 +8,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=zlib
-PKG_VERSION:=1.2.9
+PKG_VERSION:=1.2.10
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=http://www.zlib.net @SF/libpng
-PKG_HASH:=03d9c7f67976cf1389589782de46f45011053ea7f4222c2fb8c2cf9fd813bb68
+PKG_HASH:=9612bf086047078ce3a1c154fc9052113fc1a2a97234a059da17a6299bd4dd32
 
 PKG_LICENSE:=Zlib
 PKG_LICENSE_FILES:=README