Declare opp_check_content_uri_permissions flag

Flag: com.android.bluetooth.flags.opp_check_content_uri_permissions
Ignore-AOSP-First: Security fix
Test: m com.google.android.btservices
Bug: 375466974
Bug: 315241296
Change-Id: I22711856821004ca737f6b3b5b00bcb2d155db6f