Update the summary for DND conditional

Since original string is too long for DND conditional subtext, separate
DND conditional to two different states, one is for "Phone muted" state,
the othe is for "With exceptions" state.

Also, clean up the strings of other product variants for the conditional.

Bug: 122929205
Test: visual
Change-Id: Icb156ff9a4858a26355d92e6d4fb82ad1927b278

tests/robotests/src/com/android/settings/testutils/shadow/ShadowNotificationManager.java

@@ -18,6 +18,7 @@ package com.android.settings.testutils.shadow;
 
 import android.app.NotificationManager;
 import android.net.Uri;
+import android.service.notification.ZenModeConfig;
 
 import org.robolectric.annotation.Implementation;
 import org.robolectric.annotation.Implements;
@@ -26,6 +27,7 @@ import org.robolectric.annotation.Implements;
 public class ShadowNotificationManager {
 
     private int mZenMode;
+    private ZenModeConfig mZenModeConfig;
 
     @Implementation
     protected void setZenMode(int mode, Uri conditionId, String reason) {
@@ -36,4 +38,13 @@ public class ShadowNotificationManager {
     protected int getZenMode() {
         return mZenMode;
     }
+
+    @Implementation
+    public ZenModeConfig getZenModeConfig() {
+        return mZenModeConfig;
+    }
+
+    public void setZenModeConfig(ZenModeConfig config) {
+        mZenModeConfig = config;
+    }
 }