Added qemu-kvm for armv7l

Makefile

@@ -47,6 +47,10 @@ arm:
 	$(MAKE) -C qemu-4.1.1 install
 	rm -rf qemu-4.1.1
 
+	if [ `uname -m` = 'armv7l' ] ; then \
+	    install -v -m755 qemu-kvm-armv7l /usr/bin/qemu-kvm ; \
+	fi
+
 	swapoff swap
 	rm -rf swap
 

qemu-kvm-armv7l

+#!/bin/sh
+
+# Libvirt introspects the binary using -M none. In that case, don't try
+# to init KVM, which will fail and be noisy if the host has kvm disabled
+opts="-machine accel=kvm"
+if echo "$@" | grep -q " -M none "; then
+    opts=
+fi
+
+exec /usr/bin/qemu-system-arm $opts "$@"