p2p: avoid adding duplicate channel lists am: 8183656c61 am: 6a7451e1ba

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/wpa_supplicant_8/+/19272886

Change-Id: I228a88f6817025b8bc8f1723570579bc64df2944
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>