camera2: Update CameraService for HAL1 shim.

Updates the camera service to handle shim connections.

Changes include:
- Adds begin/end configure binder calls.
- Adds cache for shim client static camera metadata.
- Implements basic getCameraCharacteristic functionality for shim clients.

Bug: 15116722
Bug: 15117269

Change-Id: I510c5888ca15f8e7d3b8ed1680ff1c7f8f514744
diff --git a/services/camera/libcameraservice/api2/CameraDeviceClient.cpp b/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
index 5a48a62..4fce1b3 100644
--- a/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
+++ b/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
@@ -246,6 +246,18 @@
     return res;
 }
 
+status_t CameraDeviceClient::beginConfigure() {
+    // TODO: Implement this.
+    ALOGE("%s: Not implemented yet.", __FUNCTION__);
+    return OK;
+}
+
+status_t CameraDeviceClient::endConfigure() {
+    // TODO: Implement this.
+    ALOGE("%s: Not implemented yet.", __FUNCTION__);
+    return OK;
+}
+
 status_t CameraDeviceClient::deleteStream(int streamId) {
     ATRACE_CALL();
     ALOGV("%s (streamId = 0x%x)", __FUNCTION__, streamId);