Better description and parameter name of setPreferredDataSubscriptionId

Bug: 128455935 128456058
Test: build
Change-Id: Ied8ac5baa19ddb946eb98fdcc6c9ccfc47a656d7
Merged-In: Ied8ac5baa19ddb946eb98fdcc6c9ccfc47a656d7
diff --git a/src/com/android/ons/ONSProfileSelector.java b/src/com/android/ons/ONSProfileSelector.java
index b131568..a8bff95 100644
--- a/src/com/android/ons/ONSProfileSelector.java
+++ b/src/com/android/ons/ONSProfileSelector.java
@@ -601,7 +601,7 @@
         } else {
             log("Inactive sub passed for preferred data " + subId);
             sendSetOpptCallbackHelper(callbackStub,
-                    TelephonyManager.SET_OPPORTUNISTIC_SUB_INVALID_PARAMETER);
+                    TelephonyManager.SET_OPPORTUNISTIC_SUB_INACTIVE_SUBSCRIPTION);
         }
     }