GATT: Add SuppressLint to avoid conflicts

This breaks CL 1696506 into two pieces to avoid a merge conflict.

Bug: 185421683
Test: Compile, test app
Tag: #feature
Change-Id: If2b81a9416292b2e8240beda1f34e59197384769
Merged-In: I3319315e65f8b76d8c1bf7ecb17d673b1b862366
diff --git a/android/app/src/com/android/bluetooth/gatt/GattService.java b/android/app/src/com/android/bluetooth/gatt/GattService.java
index 1a2593e..0a81478 100644
--- a/android/app/src/com/android/bluetooth/gatt/GattService.java
+++ b/android/app/src/com/android/bluetooth/gatt/GattService.java
@@ -19,6 +19,7 @@
 import static android.content.pm.PackageManager.PERMISSION_GRANTED;
 
 import android.annotation.Nullable;
+import android.annotation.SuppressLint;
 import android.app.AppOpsManager;
 import android.app.PendingIntent;
 import android.app.Service;