tools/expat: switch to tar.xz to save bandwidth

The tar.xz download is a bit smaller. Use this download to save traffic.

Suggested-by: hardfalcon
Signed-off-by: Nick Hainke <[email protected]>

tools/expat/Makefile

@@ -11,8 +11,8 @@ PKG_NAME:=expat
 PKG_CPE_ID:=cpe:/a:libexpat:expat
 PKG_VERSION:=2.4.9
 
-PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
-PKG_HASH:=7f44d1469b110773a94b0d5abeeeffaef79f8bd6406b07e52394bcf48126437a
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
+PKG_HASH:=6e8c0728fe5c7cd3f93a6acce43046c5e4736c7b4b68e032e9350daa0efc0354
 PKG_SOURCE_URL:=https://github.com/libexpat/libexpat/releases/download/R_$(subst .,_,$(PKG_VERSION))
 
 HOST_BUILD_PARALLEL:=1