SF: Allow present if sideband stream changed

Allows the sideband layer to be passed all the way to HWC instead of
getting blocked by the updated PTS tracking code.

Bug: 22291067
Change-Id: Ic2f20a7528e276fff054e86ca35789c26873b348

services/surfaceflinger/Layer.cpp

@@ -1101,6 +1101,10 @@ void Layer::useEmptyDamage() {
 // ----------------------------------------------------------------------------
 
 bool Layer::shouldPresentNow(const DispSync& dispSync) const {
+    if (mSidebandStreamChanged) {
+        return true;
+    }
+
     Mutex::Autolock lock(mQueueItemLock);
     if (mQueueItems.empty()) {
         return false;