Add CursorController to the input dump

Test: manually validate `adb shell dumpsys input`
Bug: 245989146
FLAG: EXEMPT log only update

Change-Id: Ibab15f613e3076df2ac2ac2e672ce9e699de7f67
diff --git a/libs/input/MouseCursorController.h b/libs/input/MouseCursorController.h
index 78f6413..8600341 100644
--- a/libs/input/MouseCursorController.h
+++ b/libs/input/MouseCursorController.h
@@ -67,6 +67,8 @@
 
     bool resourcesLoaded();
 
+    std::string dump() const;
+
 private:
     mutable std::mutex mLock;