Camera: Extend camera characteristics test case

Verify that device implementations do not set the
new privacy characteristics key:
ANDROID_REQUEST_CHARACTERISTIC_KEYS_NEEDING_PERMISSION
As required by API contract.

Bug: 112160024
Bug: 115969437
Test: vts-tradefed run commandAndExit vts --skip-all-system-status-check
--skip-preconditions --module VtsHalCameraProviderV2_4Target -l INFO

Change-Id: I8d8f0d0e1cdec24117d47e7ae45602f56573376f
diff --git a/camera/provider/2.4/vts/functional/VtsHalCameraProviderV2_4TargetTest.cpp b/camera/provider/2.4/vts/functional/VtsHalCameraProviderV2_4TargetTest.cpp
index 439333d..f2a7836 100644
--- a/camera/provider/2.4/vts/functional/VtsHalCameraProviderV2_4TargetTest.cpp
+++ b/camera/provider/2.4/vts/functional/VtsHalCameraProviderV2_4TargetTest.cpp
@@ -2080,6 +2080,14 @@
                     } else {
                         ADD_FAILURE() << "Get camera hardware level failed!";
                     }
+
+                    entry.count = 0;
+                    retcode = find_camera_metadata_ro_entry(metadata,
+                            ANDROID_REQUEST_CHARACTERISTIC_KEYS_NEEDING_PERMISSION, &entry);
+                    if ((0 == retcode) || (entry.count > 0)) {
+                        ADD_FAILURE() << "ANDROID_REQUEST_CHARACTERISTIC_KEYS_NEEDING_PERMISSION "
+                            << " per API contract should never be set by Hal!";
+                    }
                 });
                 ASSERT_TRUE(ret.isOk());
             }