(touch-mode-md 1.1/n) Initialize per display touch mode (native)

Include perDisplayTouchModeEnabled in InputDispatcherPolicy.

Bug: 198499018
Test: atest inputflinger_tests inputflinger_benchmarks
Test: atest TouchModeTest
Change-Id: Idc6ad970bd651a8270055d3f197c4a680c00d350
diff --git a/services/inputflinger/benchmarks/InputDispatcher_benchmarks.cpp b/services/inputflinger/benchmarks/InputDispatcher_benchmarks.cpp
index ec5841c..c9ea068 100644
--- a/services/inputflinger/benchmarks/InputDispatcher_benchmarks.cpp
+++ b/services/inputflinger/benchmarks/InputDispatcher_benchmarks.cpp
@@ -112,6 +112,8 @@
 
     void notifyDropWindow(const sp<IBinder>&, float x, float y) override {}
 
+    bool isPerDisplayTouchModeEnabled() override { return false; }
+
     InputDispatcherConfiguration mConfig;
 };