Longhorn: Upgrade from 1.6.4. to 1.7.3

Change-Id: I4e713a453a6b9e983685e2db550066fd2694609f
diff --git a/charts/longhorn/templates/services.yaml b/charts/longhorn/templates/services.yaml
index 9523cab..4c8c6bc 100644
--- a/charts/longhorn/templates/services.yaml
+++ b/charts/longhorn/templates/services.yaml
@@ -8,7 +8,7 @@
 spec:
   type: ClusterIP
   selector:
-    app: longhorn-manager
+    longhorn.io/conversion-webhook: longhorn-conversion-webhook
   ports:
   - name: conversion-webhook
     port: 9501
@@ -24,7 +24,7 @@
 spec:
   type: ClusterIP
   selector:
-    app: longhorn-manager
+    longhorn.io/admission-webhook: longhorn-admission-webhook
   ports:
   - name: admission-webhook
     port: 9502
@@ -40,7 +40,7 @@
 spec:
   type: ClusterIP
   selector:
-    app: longhorn-manager
+    longhorn.io/recovery-backend: longhorn-recovery-backend
   ports:
   - name: recovery-backend
     port: 9503