qemu: bump to version 2.12.1

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

utils/qemu/Makefile

@@ -9,10 +9,10 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=qemu
-PKG_VERSION:=2.11.1
+PKG_VERSION:=2.12.1
 PKG_RELEASE:=1
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
-PKG_HASH:=d9df2213ceed32e91dab7bc9dd19c1af83f91ba72c7aeef7605dfaaf81732ccb
+PKG_HASH:=4150809a52d821398dfd38c94b065513ef26b393fda9aba4bb6f09644cf1e5ca
 PKG_SOURCE_URL:=http://wiki.qemu-project.org/download/
 PKG_LICENSE:=GPL-2.0
 PKG_LICENSE_FILES:=LICENSE tcg/LICENSE