arm/run: ensure we use processor=host for kvm

The configure script will happily default to cortex-a15 even when
running on a cortex-a7. This runs into problems when running KVM on
common dev boards as we should be using the "host" processor.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20170518160208.9674-3-alex.bennee@linaro.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

arm/run

@@ -44,9 +44,9 @@ if [ "$ACCEL" = "kvm" ]; then
 	if $qemu $M,\? 2>&1 | grep gic-version > /dev/null; then
 		M+=',gic-version=host'
 	fi
-	if [ "$HOST" = "aarch64" ]; then
+	if [ "$HOST" = "aarch64" ] || [ "$HOST" = "arm" ]; then
 		processor="host"
-		if [ "$ARCH" = "arm" ]; then
+		if [ "$ARCH" = "arm" ] && [ "$HOST" = "aarch64" ]; then
 			processor+=",aarch64=off"
 		fi
 	fi