using the correct intent extra for subId

Some telephony subscription related intent uses hidden extra
PhoneConstants.SUBSCRIPTION_KEY. We should sent the public extra
SubscriptionManager.EXTRA_SUBSCRIPTION_INDEX instead.

Bug: 116754807
Test: telephony unit test
Change-Id: I842df9b3fa7c0c8efed2db6ac5cd6a8c34ab3ee4
diff --git a/services/core/java/com/android/server/TelephonyRegistry.java b/services/core/java/com/android/server/TelephonyRegistry.java
index 0955bed..0f9fe83 100644
--- a/services/core/java/com/android/server/TelephonyRegistry.java
+++ b/services/core/java/com/android/server/TelephonyRegistry.java
@@ -1644,6 +1644,7 @@
         intent.putExtras(data);
         // Pass the subscription along with the intent.
         intent.putExtra(PhoneConstants.SUBSCRIPTION_KEY, subId);
+        intent.putExtra(SubscriptionManager.EXTRA_SUBSCRIPTION_INDEX, subId);
         intent.putExtra(PhoneConstants.SLOT_KEY, phoneId);
         mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL);
     }
@@ -1698,6 +1699,7 @@
         if (subId != SubscriptionManager.INVALID_SUBSCRIPTION_ID) {
             intent.setAction(PhoneConstants.ACTION_SUBSCRIPTION_PHONE_STATE_CHANGED);
             intent.putExtra(PhoneConstants.SUBSCRIPTION_KEY, subId);
+            intent.putExtra(SubscriptionManager.EXTRA_SUBSCRIPTION_INDEX, subId);
         }
         // If the phoneId is invalid, the broadcast is for overall call state.
         if (phoneId != SubscriptionManager.INVALID_PHONE_INDEX) {
diff --git a/telephony/java/com/android/internal/telephony/PhoneConstants.java b/telephony/java/com/android/internal/telephony/PhoneConstants.java
index f9de776..21f3b92 100644
--- a/telephony/java/com/android/internal/telephony/PhoneConstants.java
+++ b/telephony/java/com/android/internal/telephony/PhoneConstants.java
@@ -176,6 +176,10 @@
 
     // FIXME: This is used to pass a subId via intents, we need to look at its usage, which is
     // FIXME: extensive, and see if this should be an array of all active subId's or ...?
+    /**
+     * @Deprecated use {@link android.telephony.SubscriptionManager#EXTRA_SUBSCRIPTION_INDEX}
+     * instead.
+     */
     public static final String SUBSCRIPTION_KEY  = "subscription";
 
     public static final String SUB_SETTING  = "subSettings";