pts: Disable tests AVRCP/TG/MDI/BV-04-C, AVRCP/TG/MDI/BV-05-C

The tests are failing in postsubmit only. The test failure
cannot be reproduced locally.

Test: atest pts-bot
Bug: 303059044
Change-Id: Ic2111f634c5dde0c9093e3b98a7b2328199582d6