Set HotwordDetectionService priority same as VIS.

VoiceInteractionService is bound with the BIND_FOREGROUND_SERVICE flag.
Do the same for the HotwordDetectionService now.

Test: manual
Fix: 206812592
Change-Id: Iddd992fe475976ac68b91580c67525f56d534e32

services/voiceinteraction/java/com/android/server/voiceinteraction/HotwordDetectionConnection.java

@@ -841,7 +841,7 @@ final class HotwordDetectionConnection {
             try {
                 return mContext.bindIsolatedService(
                         mIntent,
-                        Context.BIND_AUTO_CREATE | mBindingFlags,
+                        Context.BIND_AUTO_CREATE | Context.BIND_FOREGROUND_SERVICE | mBindingFlags,
                         "hotword_detector_" + mInstanceNumber,
                         mExecutor,
                         serviceConnection);