[SIM Dialog Migration] Enable SIM operation dialog in Settings

Change Settings to not call SubscriptionManager#setSubscriptionEnabled.
Instead, make Settings call EuiccManager APIs directly.
Design: https://docs.google.com/document/d/1wb5_hoBkZVbkXGNWHbx4Jf61swjfxsJzkytiTzJosYo/edit?usp=sharing
Bug: 160819390
Test: Manually tested eSIM profile enabling.

Change-Id: I56bbcbb9ccb886b0f9249e67c5a6a6444bb7dd45

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

@@ -189,7 +189,8 @@ public class MobileNetworkSummaryController extends AbstractPreferenceController
                     final int subId = info.getSubscriptionId();
                     if (!info.isEmbedded() && !mSubscriptionManager.isActiveSubscriptionId(subId)
                             && !SubscriptionUtil.showToggleForPhysicalSim(mSubscriptionManager)) {
-                        mSubscriptionManager.setSubscriptionEnabled(subId, true);
+                        SubscriptionUtil.startToggleSubscriptionDialogActivity(
+                                mContext, subId, true);
                     } else {
                         final Intent intent = new Intent(mContext, MobileNetworkActivity.class);
                         intent.putExtra(Settings.EXTRA_SUB_ID, subs.get(0).getSubscriptionId());