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/reader/mapper/JoystickInputMapper.cpp b/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
index 7724cf7..f65cdcb 100644
--- a/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
@@ -321,7 +321,7 @@
     PointerProperties pointerProperties;
     pointerProperties.clear();
     pointerProperties.id = 0;
-    pointerProperties.toolType = AMOTION_EVENT_TOOL_TYPE_UNKNOWN;
+    pointerProperties.toolType = ToolType::UNKNOWN;
 
     PointerCoords pointerCoords;
     pointerCoords.clear();