Fix performance-for-range-copy warnings

Bug: 30413223
Test: make with WITH_TIDY=1 DEFAULT_GLOBAL_TIDY_CHECKS=-*,performance*
Change-Id: Ia63c695575d2602ff7e67db874d423b99f4daeef
diff --git a/services/camera/libcameraservice/api2/CameraDeviceClient.cpp b/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
index 84428c2..567b15f 100644
--- a/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
+++ b/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
@@ -252,7 +252,7 @@
         Vector<int32_t> outputStreamIds;
         std::vector<std::string> requestedPhysicalIds;
         if (request.mSurfaceList.size() > 0) {
-            for (sp<Surface> surface : request.mSurfaceList) {
+            for (const sp<Surface>& surface : request.mSurfaceList) {
                 if (surface == 0) continue;
 
                 int32_t streamId;