Add getter for ExpectedRotationCheckEnabled

Used by flicker to disable and then reset this value when performing certain actions that require ExpectedRotationCheckEnabled to be false but then we want to restore to the initial value.

Bug: 300065764

Test: n/a
Change-Id: I650e15b206984b5fd7a2313fb63308e4c551c30a

tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java

@@ -721,6 +721,10 @@ public final class LauncherInstrumentation {
         mExpectedRotationCheckEnabled = expectedRotationCheckEnabled;
     }
 
+    public boolean getExpectedRotationCheckEnabled() {
+        return mExpectedRotationCheckEnabled;
+    }
+
     public String getNavigationModeMismatchError(boolean waitForCorrectState) {
         final int waitTime = waitForCorrectState ? WAIT_TIME_MS : 0;
         final NavigationModel navigationModel = getNavigationModel();