Fix C++23 build. am: 87396026cc

Original change: https://android-review.googlesource.com/c/platform/system/libhidl/+/3499170

Change-Id: I0f18034a915a86ed2cf3a9ba31da2d8d42bf9db6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/transport/HidlLazyUtils.cpp b/transport/HidlLazyUtils.cpp
index c5f8c74..618f279 100644
--- a/transport/HidlLazyUtils.cpp
+++ b/transport/HidlLazyUtils.cpp
@@ -16,6 +16,8 @@
 
 #define LOG_TAG "HidlLazyUtils"
 
+#include <mutex>
+
 #include <hidl/HidlLazyUtils.h>
 #include <hidl/HidlTransportSupport.h>