Add trunk flag check to prevent changing the special app access settings for...

Add trunk flag check to prevent changing the special app access settings for 'Change media output' for direct intent based entry when trunk flag is not enabled.

Bug: 321905521
Test: Ensure trunk flag is disabled > Open app specific settings for 'Change media output' > Ensure that settings should not be changeable
Change-Id: Iedfd82d97eb49fc65c56d332bde815ff41e24736