Camera: Add version 3.8 of ICameraDeviceCallback

The new version of ICameraDeviceCallback supports shutter notify with readout
timestamp.

The readout timestamp is used to re-time viewfinder frames to reduce
jitter. When camera runs at fixed frame rate, the start_of_exposure time
intervals may change, but start_or_readout intervals are constant.

Test: Camera VTS test
Bug: 189380857
Change-Id: I4c3856a4e30caa8cdf8417d437de1de3190c6fd6
diff --git a/camera/device/3.8/ICameraDevice.hal b/camera/device/3.8/ICameraDevice.hal
new file mode 100644
index 0000000..448f176
--- /dev/null
+++ b/camera/device/3.8/ICameraDevice.hal
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.camera.device@3.8;
+
+import @3.7::ICameraDevice;
+
+/**
+ * Camera device interface
+ *
+ * Supports the android.hardware.Camera API, and the android.hardware.camera2
+ * API at LIMITED or better hardware level.
+ *
+ * ICameraDevice.open() must return @3.2::ICameraDeviceSession,
+ * @3.5::ICameraDeviceSession, @3.6::ICameraDeviceSession, or
+ * @3.7::ICameraDeviceSession.
+ */
+interface ICameraDevice extends @3.7::ICameraDevice {
+};