Update to sdcore-adapter 0.2.15; add option for partial updates

Change-Id: I8410e75989369dec3265897a44590ad250487086
diff --git a/sdcore-adapter-v4/templates/deployment.yaml b/sdcore-adapter-v4/templates/deployment.yaml
index 2819a0b..2f52b53 100644
--- a/sdcore-adapter-v4/templates/deployment.yaml
+++ b/sdcore-adapter-v4/templates/deployment.yaml
@@ -60,6 +60,9 @@
             {{ if .Values.spgwEndpoint }}
             - "-spgw_endpoint={{ .Values.spgwEndpoint }}"
             {{ end }}
+            {{ if not .Values.partialUpdateEnabled }}
+            - "-partial_update_disable"
+            {{ end }}
           ports:
             {{- range $key, $port := .Values.ports.gnmi }}
             - name: gnmi{{ $key }}