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/oboeservice/AAudioServiceEndpointCapture.cpp b/services/oboeservice/AAudioServiceEndpointCapture.cpp
index efac788..cc942f4 100644
--- a/services/oboeservice/AAudioServiceEndpointCapture.cpp
+++ b/services/oboeservice/AAudioServiceEndpointCapture.cpp
@@ -81,7 +81,7 @@
         { // brackets are for lock_guard
 
             std::lock_guard <std::mutex> lock(mLockStreams);
-            for (const auto clientStream : mRegisteredStreams) {
+            for (const auto& clientStream : mRegisteredStreams) {
                 if (clientStream->isRunning()) {
                     int64_t clientFramesWritten = 0;
                     sp<AAudioServiceStreamShared> streamShared =