Updated Lock to avoid starvation

The lock class is made more greedy so all locks are granted in the requested order.
Previously, an exclusive lock could be discriminated.

Issue-ID: CCSDK-3560
Signed-off-by: PatrikBuhr <patrik.buhr@est.tech>
Change-Id: If2dd171409c58eacbccce9569b2f6694e09992a2
diff --git a/a1-policy-management/api/pms-api.yaml b/a1-policy-management/api/pms-api.yaml
index c23f0fc..875e273 100644
--- a/a1-policy-management/api/pms-api.yaml
+++ b/a1-policy-management/api/pms-api.yaml
@@ -435,7 +435,7 @@
       - Service Registry and Supervision
       summary: Heartbeat indicates that the service is running
       description: A registerred service must call this in regular intervals to indicate
-        that it is in operation. Absence of this call will lead to that teh service
+        that it is in operation. Absence of this call will lead to that the service
         will be deregisterred and all its policies are removed.
       operationId: keepAliveService
       parameters: