Update string for bluetooth device visibility

Change-Id: I33baa5e72596e10f10f13d2324144ca9036c3fc9
Fix: 62891178
Test: visual
Test: robotests

tests/robotests/src/com/android/settings/bluetooth/BluetoothDeviceNamePreferenceControllerTest.java

@@ -72,8 +72,9 @@ public class BluetoothDeviceNamePreferenceControllerTest {
         mController.updateDeviceName(mPreference, DEVICE_NAME);
 
         final CharSequence summary = mPreference.getSummary();
+
         assertThat(summary.toString())
-                .isEqualTo("Visible as 'Nightshade' to other devices");
+                .isEqualTo("Visible as \"Nightshade\" to other devices");
         assertThat(mPreference.isSelectable()).isFalse();
     }