qemu: bump to version 3.1.0

Changelog can be found at https://wiki.qemu.org/ChangeLog/3.1

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>

utils/qemu/Makefile

@@ -9,10 +9,10 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=qemu
-PKG_VERSION:=3.0.0
+PKG_VERSION:=3.1.0
 PKG_RELEASE:=1
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
-PKG_HASH:=8d7af64fe8bd5ea5c3bdf17131a8b858491bcce1ee3839425a6d91fb821b5713
+PKG_HASH:=6a0508df079a0a33c2487ca936a56c12122f105b8a96a44374704bef6c69abfc
 PKG_SOURCE_URL:=http://download.qemu.org/
 PKG_LICENSE:=GPL-2.0
 PKG_LICENSE_FILES:=LICENSE tcg/LICENSE