Convert tool type to enum class

For better type safety, use enum class when sending tool type.

Bug: 198472780
Test: atest libinput_tests inputflinger_tests
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:09a8fe42ba1d218c2f445e4fd5bc387e260ae067)
Merged-In: I371f08087b9513b6f75966c124de77bc12f8324e
Change-Id: I371f08087b9513b6f75966c124de77bc12f8324e
diff --git a/services/inputflinger/tests/NotifyArgs_test.cpp b/services/inputflinger/tests/NotifyArgs_test.cpp
index 6715585..1536756 100644
--- a/services/inputflinger/tests/NotifyArgs_test.cpp
+++ b/services/inputflinger/tests/NotifyArgs_test.cpp
@@ -54,7 +54,7 @@
     for (size_t i = 0; i < pointerCount; i++) {
         pointerProperties[i].clear();
         pointerProperties[i].id = i;
-        pointerProperties[i].toolType = AMOTION_EVENT_TOOL_TYPE_FINGER;
+        pointerProperties[i].toolType = ToolType::FINGER;
 
         pointerCoords[i].clear();
         pointerCoords[i].setAxisValue(AMOTION_EVENT_AXIS_X, x++);