Update cirros image to cirros-0.5.1

New cirros with recent fixes for metadata service
has been released. [1]
Let's update the image version in gate.

This also includes a fix to pass image name to SDK tests.

[1] cirros-dev/cirros@e40bcd2

Change-Id: I6ccd646f1c22a99bed0bebf6e363d2190241b667
Co-authored-by: Radosław Piliszek <radoslaw.piliszek@gmail.com>

Author: mjozefcz

functions-common

@@ -129,6 +129,11 @@ function write_clouds_yaml {
         --os-password $ADMIN_PASSWORD \
         --os-system-scope all
 
+    cat >> $CLOUDS_YAML <<EOF
+functional:
+  image_name: $DEFAULT_IMAGE_NAME
+EOF
+
     # CLean up any old clouds.yaml files we had laying around
     rm -f $(eval echo ~"$STACK_USER")/.config/openstack/clouds.yaml
 }

stackrc

@@ -676,7 +676,7 @@ esac
 #IMAGE_URLS="http://smoser.brickies.net/ubuntu/ttylinux-uec/ttylinux-uec-amd64-11.2_2.6.35-15_1.tar.gz" # old ttylinux-uec image
 #IMAGE_URLS="http://download.cirros-cloud.net/${CIRROS_VERSION}/cirros-${CIRROS_VERSION}-${CIRROS_ARCH}-disk.img" # cirros full disk image
 
-CIRROS_VERSION=${CIRROS_VERSION:-"0.4.0"}
+CIRROS_VERSION=${CIRROS_VERSION:-"0.5.1"}
 CIRROS_ARCH=${CIRROS_ARCH:-"x86_64"}
 
 # Set default image based on ``VIRT_DRIVER`` and ``LIBVIRT_TYPE``, either of