gzip: Update to 1.9

Signed-off-by: Rosen Penev <rosenp@gmail.com>

utils/gzip/Makefile

@@ -8,14 +8,15 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gzip
-PKG_VERSION:=1.7
+PKG_VERSION:=1.9
 PKG_RELEASE:=1
 
-PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=@GNU/gzip
-PKG_HASH:=eccbaa178c7801618c887956f1668d45bb57863a9d2678bfc3e36d01fb951904
+PKG_HASH:=ae506144fc198bd8f81f1f4ad19ce63d5a2d65e42333255977cf1dcf1479089a
 PKG_LICENSE:=GPL-3.0+
 
+PKG_BUILD_PARALLEL:=1
 PKG_INSTALL:=1
 
 include $(INCLUDE_DIR)/package.mk