Fix long-press issue in RelativeTouchListener.

performLongClick does not check if the view is long-clickable, and defaults to showing a context menu if the long-click listener is not set. This crashes Bubbles. Just check if the view is long-clickable first.

Test: manual
Fixes: 154417194
Change-Id: I0bb1363fac3b5a2d16d1f5dc79f40b4a2bf88f4d

packages/SystemUI/src/com/android/systemui/util/RelativeTouchListener.kt

@@ -115,7 +115,9 @@ abstract class RelativeTouchListener : View.OnTouchListener {
 
                 performedLongClick = false
                 handler.postDelayed({
-                    performedLongClick = v.performLongClick()
+                    if (v.isLongClickable) {
+                        performedLongClick = v.performLongClick()
+                    }
                 }, ViewConfiguration.getLongPressTimeout().toLong())
             }