cameraserver: Allow clients to specify lower oom scores for camera arbitration.

Bug: 187429135

Test: atest CameraEvictionTest.java

Change-Id: I7b54a399f87f57a428cc9da382bcc51ebf6adfa6
Signed-off-by: Jayant Chowdhary <jchowdhary@google.com>
diff --git a/camera/aidl/android/hardware/ICameraService.aidl b/camera/aidl/android/hardware/ICameraService.aidl
index 873d738..6e82968 100644
--- a/camera/aidl/android/hardware/ICameraService.aidl
+++ b/camera/aidl/android/hardware/ICameraService.aidl
@@ -92,7 +92,7 @@
             String cameraId,
             String opPackageName,
             @nullable String featureId,
-            int clientUid);
+            int clientUid, int oomScoreOffset);
 
     /**
      * Add listener for changes to camera device and flashlight state.