Fix fallbackIMM#showSoftInput call

Previously calls to fallbackIMM#showSoftInput would drop the statsToken
and reason, as they would call a different variant of the function.

This fixes it to ensure no statsToken can timeout in this case.

Test: n/a
Bug: 294992637
Change-Id: Ib6b1c0c1822be5de6b246a6c662d1d93ff4a0331

core/java/android/view/inputmethod/InputMethodManager.java

@@ -2165,7 +2165,7 @@ public final class InputMethodManager {
         // Re-dispatch if there is a context mismatch.
         final InputMethodManager fallbackImm = getFallbackInputMethodManagerIfNecessary(view);
         if (fallbackImm != null) {
-            return fallbackImm.showSoftInput(view, flags, resultReceiver);
+            return fallbackImm.showSoftInput(view, statsToken, flags, resultReceiver, reason);
         }
 
         checkFocus();