Camera: use gralloc mapper for handle import

Bug: 37540361
Test: marlin, smoke test GCA
Change-Id: I9d58d9c6af20b37c016f036bce2dcf55817c59aa
diff --git a/camera/device/3.2/default/CameraDeviceSession.cpp b/camera/device/3.2/default/CameraDeviceSession.cpp
index 2499b1a..82d167a 100644
--- a/camera/device/3.2/default/CameraDeviceSession.cpp
+++ b/camera/device/3.2/default/CameraDeviceSession.cpp
@@ -35,7 +35,7 @@
 // Size of result metadata fast message queue. Change to 0 to always use hwbinder buffer.
 static constexpr size_t CAMERA_RESULT_METADATA_QUEUE_SIZE  = 1 << 20 /* 1MB */;
 
-HandleImporter& CameraDeviceSession::sHandleImporter = HandleImporter::getInstance();
+HandleImporter CameraDeviceSession::sHandleImporter;
 const int CameraDeviceSession::ResultBatcher::NOT_BATCHED;
 
 CameraDeviceSession::CameraDeviceSession(