Allow VoiceInteractionManagerService to open voice and
assistant activities from background

Bug: 123936802
Bug: 123680744
Test: manual, opening assistant by squeeze from a) keyguard, b) when
      another app is in fg, and c) with BT headphones button
Change-Id: I97907c66899b66f781c8f8e87d73b767da5e4761
diff --git a/services/core/java/com/android/server/wm/ActivityTaskManagerService.java b/services/core/java/com/android/server/wm/ActivityTaskManagerService.java
index 7aa3481..875fc4e 100644
--- a/services/core/java/com/android/server/wm/ActivityTaskManagerService.java
+++ b/services/core/java/com/android/server/wm/ActivityTaskManagerService.java
@@ -1383,6 +1383,7 @@
                 .setProfilerInfo(profilerInfo)
                 .setActivityOptions(bOptions)
                 .setMayWait(userId)
+                .setAllowBackgroundActivityStart(true)
                 .execute();
     }
 
@@ -1398,6 +1399,7 @@
                 .setResolvedType(resolvedType)
                 .setActivityOptions(bOptions)
                 .setMayWait(userId)
+                .setAllowBackgroundActivityStart(true)
                 .execute();
     }