Add native InputTransferToken

Added a native class that corresponds to the Java InputTransferToken.

Test: SurfaceControlInputReceiverTests
Test: AInputTransferTokenTest
Bug: 324271765
Change-Id: Ic5549227ad8c8ab311f8953eaf370e1a2896d8f3
diff --git a/native/android/Android.bp b/native/android/Android.bp
index 752ebdf..4812685 100644
--- a/native/android/Android.bp
+++ b/native/android/Android.bp
@@ -58,6 +58,7 @@
         "configuration.cpp",
         "hardware_buffer_jni.cpp",
         "input.cpp",
+        "input_transfer_token.cpp",
         "looper.cpp",
         "native_activity.cpp",
         "native_window_jni.cpp",