libgui: reset mEnableFrameTimestamps when Surface disconnects

Bug: 134185757
Test: build, flash and boot
Change-Id: Ibe2ae9636bd0bf2beb6ab9e3c6a9a81e3fc7442a
diff --git a/libs/gui/Surface.cpp b/libs/gui/Surface.cpp
index 4e6a4e7..eb2e3f0 100644
--- a/libs/gui/Surface.cpp
+++ b/libs/gui/Surface.cpp
@@ -1354,6 +1354,7 @@
         mTransform = 0;
         mStickyTransform = 0;
         mAutoPrerotation = false;
+        mEnableFrameTimestamps = false;
 
         if (api == NATIVE_WINDOW_API_CPU) {
             mConnectedToCpu = false;