Subscription name has whitespace trimmed to determine uniqueness

For example, if a subscription has the name "subsc" and another has
"subsc    " the extra unique information will be added to the
subscriptions.

Test: atest -c SubscriptionUtilTest
Bug: 183664625
Change-Id: Ia137169f6cdd9804ab04126e5045c9fb61556d54

src/com/android/settings/network/SubscriptionUtil.java

@@ -256,7 +256,7 @@ public class SubscriptionUtil {
                 .map(i -> {
                     DisplayInfo info = new DisplayInfo();
                     info.subscriptionInfo = i;
-                    info.originalName = i.getDisplayName();
+                    info.originalName = i.getDisplayName().toString().trim();
                     return info;
                 });