p2p: fix vts fail due to 5g go init fail with 00 country code

The force 5GHz Go will cause fail when country code is 00 or chip
doesn't support 5GHz.
Change test parameter to force 0 which means driver decide GO channel.

Bug: 130208180
Test: vts-tradefed run commandAndExit vts-hal --skip-all-system-status-check --primary-abi-only --skip-preconditions --module VtsHalWifiSupplicantP2pV1_2Target -l INFO
Change-Id: I0d2a8fcba4ece616ddeccbae36146329e9043157