wifi: set join to true in p2p connect tests am: 85866568

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2743883



Change-Id: I33ce58f24f6ee761b21a7a7f99129dd88c7ad3df
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>