[POLICY] Remove hardcoded credentials from policy-apex-pdp

This patch remove hardcoded healthcheck credentials and trustStorePassword
from policy-apex-pdp.

Issue-ID: OOM-2342
Signed-off-by: Dominik Mizyn <d.mizyn@samsung.com>
Change-Id: Ie8800830919479b87d7a71dfafe934bb95839ede
diff --git a/kubernetes/policy/charts/policy-apex-pdp/resources/config/OnapPfConfig.json b/kubernetes/policy/charts/policy-apex-pdp/resources/config/OnapPfConfig.json
index 3b6813d..767d145 100644
--- a/kubernetes/policy/charts/policy-apex-pdp/resources/config/OnapPfConfig.json
+++ b/kubernetes/policy/charts/policy-apex-pdp/resources/config/OnapPfConfig.json
@@ -3,8 +3,8 @@
     "restServerParameters": {
       "host": "0.0.0.0",
       "port": 6969,
-      "userName": "healthcheck",
-      "password": "zb!XztG34",
+      "userName": "${RESTSERVER_USER}",
+      "password": "${RESTSERVER_PASSWORD}",
       "https": true
     },
     "pdpStatusParameters":{