[MSB]Update MSB docker images version

Updated the version of MSB's images.

Issue-ID: MSB-537
Signed-off-by: jinquanni <ni.jinquan@zte.com.cn>
Change-Id: I034005e3033640643d83f858c31020d18ce1787f
diff --git a/kubernetes/msb/components/msb-discovery/values.yaml b/kubernetes/msb/components/msb-discovery/values.yaml
index 994e84b..e981bbd 100644
--- a/kubernetes/msb/components/msb-discovery/values.yaml
+++ b/kubernetes/msb/components/msb-discovery/values.yaml
@@ -21,7 +21,7 @@
 # Application configuration defaults.
 #################################################################
 # application image
-image: onap/msb/msb_discovery:1.2.6
+image: onap/msb/msb_discovery:1.2.7
 pullPolicy: Always
 istioSidecar: true