Add TAINTED to MotionFlags in input.rs

As it stands, we should add all of our event flags to the MotionFlag,
otherwise we're bound to get some unexpected crashes.

Bug: none
Test: Build

Signed-off-by: Linnan Li <lilinnan@xiaomi.corp-partner.google.com>
(cherry picked from https://partner-android-review.googlesource.com/q/commit:0cc4d1d45b90376ddd5c916572e88f704c6f075a)
Merged-In: I6d53c8c0f995104fe5352356fc66fe586f6a86f1
Change-Id: I6d53c8c0f995104fe5352356fc66fe586f6a86f1
diff --git a/libs/input/rust/input.rs b/libs/input/rust/input.rs
index f55e3c0..d4f2426 100644
--- a/libs/input/rust/input.rs
+++ b/libs/input/rust/input.rs
@@ -196,6 +196,8 @@
         const NO_FOCUS_CHANGE = input_bindgen::AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE;
         /// FLAG_IS_GENERATED_GESTURE
         const IS_GENERATED_GESTURE = input_bindgen::AMOTION_EVENT_FLAG_IS_GENERATED_GESTURE;
+        /// FLAG_TAINTED
+        const TAINTED = input_bindgen::AMOTION_EVENT_FLAG_TAINTED;
     }
 }