Mark globals as private

Otherwise, they may conflict with other definitions in the same package.

Test: TH
Change-Id: I082c7af8aa186b6101ec08714d1ace5d64c1c95e
diff --git a/tests/unit/java/com/android/server/L2capNetworkProviderTest.kt b/tests/unit/java/com/android/server/L2capNetworkProviderTest.kt
index 5a7515e..56bbd31 100644
--- a/tests/unit/java/com/android/server/L2capNetworkProviderTest.kt
+++ b/tests/unit/java/com/android/server/L2capNetworkProviderTest.kt
@@ -52,13 +52,13 @@
 import org.mockito.Mockito.verify
 import org.mockito.MockitoAnnotations
 
-const val TAG = "L2capNetworkProviderTest"
+private const val TAG = "L2capNetworkProviderTest"
 
-val RESERVATION_CAPS = NetworkCapabilities.Builder.withoutDefaultCapabilities()
+private val RESERVATION_CAPS = NetworkCapabilities.Builder.withoutDefaultCapabilities()
     .addTransportType(TRANSPORT_BLUETOOTH)
     .build()
 
-val RESERVATION = NetworkRequest(
+private val RESERVATION = NetworkRequest(
         NetworkCapabilities(RESERVATION_CAPS),
         TYPE_NONE,
         42 /* rId */,