inputflinger: Restricted invalid MotionEvent button enum values

Fixes an issue by passing valid MotionEvent buttons through
NotifyMotionArgs() in FuzzedInputStream.h.

Added IfThisThenThat Lint to remind the actionButton to sync

Test: m frameworks/native/services/inputflinger/tests/fuzzers
Bug: 392345690
Flag: EXEMPT bugfix in fuzzer

Change-Id: I7c2108a255114b24e6544aa930696079e4f06b77
diff --git a/include/android/input.h b/include/android/input.h
index 5f44550..2f6c5b5 100644
--- a/include/android/input.h
+++ b/include/android/input.h
@@ -862,7 +862,7 @@
     AMOTION_EVENT_BUTTON_FORWARD = 1 << 4,
     AMOTION_EVENT_BUTTON_STYLUS_PRIMARY = 1 << 5,
     AMOTION_EVENT_BUTTON_STYLUS_SECONDARY = 1 << 6,
-    // LINT.ThenChange(/frameworks/native/libs/input/rust/input.rs)
+    // LINT.ThenChange(/frameworks/native/libs/input/rust/input.rs,/frameworks/native/services/inputflinger/tests/fuzzers/FuzzedInputStream.h)
 };
 
 /**