Grant ownership on pip to wm/wmshell group

Flag: N/A
Bug: N/A
Test: N/A
Change-Id: I02cc71be94df100db1f4f7e66af6f3648e80383d

core/java/android/app/OWNERS

@@ -118,6 +118,8 @@ per-file *ScreenCapture* = file:/services/core/java/com/android/server/wm/OWNERS
 # Multitasking
 per-file multitasking.aconfig = file:/services/core/java/com/android/server/wm/OWNERS
 per-file multitasking.aconfig = file:/libs/WindowManager/Shell/OWNERS
+per-file PictureInPicture* = file:/services/core/java/com/android/server/wm/OWNERS
+per-file PictureInPicture* = file:/libs/WindowManager/Shell/OWNERS
 
 # Zygote
 per-file *Zygote* = file:/ZYGOTE_OWNERS