[Pandora] Hotfix for pts-bot HFP breakage

I submitted aosp/2287880 which broke HFP MMIs. I didn't realize because (a) pts-bot is already broken on master, and (b) local testing worked since the next CL on the stack fixed it.

Change-Id: I3f50b8aa81279ddd12e6a6bd8e7a59fa9d1a40ce
Test: atest pts-bot:HFP
Bug: 237447510