Enable sending boundary event in pause state
Enable sending boundary event in pause state

US5054

Use CUSTOM_DOWNSTREAM_EVENT_OOB for tsb_boundary event to avoid deadlock in pause state

Change-Id: I892ecd3f793e7bcefb9ae8039d1b797d9be7b22d

cisco/gst-plugin-dlnasrc,cisco/gst-plugin-dlnasrc