qcacld-2.0: Fix stripping of IEs in p2p scan

When IE whitelisting is enabled, only probe requests from INFRA STA
during scan should contain selective IEs, but in current code,
probe requests of P2P scans are also containing selective IEs which is
bug.
To fix this, invoke IE whitelisting only for INFRA STA.
Change-Id: Icd2984013b3f29714b1e852389110ef2257be94b
Bug: 37214129
Signed-off-by: Subhani Shaik <subhanis@codeaurora.org>