Mirror image - Switched VM images to 2018.1

Change-Id: I0c1dbce7b4b26f0abdd45dd587f7976582f69c07
diff --git a/mirror-image/images_mirror/images.txt b/mirror-image/images_mirror/images.txt
index 610a4a3..cecd54b 100644
--- a/mirror-image/images_mirror/images.txt
+++ b/mirror-image/images_mirror/images.txt
@@ -1,4 +1,4 @@
 ubuntu-14-04-x64-latest.qcow2
-ubuntu-14-04-x64-mcp2017.12.qcow2
+ubuntu-14-04-x64-mcp2018.1.qcow2
 ubuntu-16-04-x64-latest.qcow2
-ubuntu-16-04-x64-mcp2017.12.qcow2
\ No newline at end of file
+ubuntu-16-04-x64-mcp2018.1.qcow2
\ No newline at end of file