Currently, channel info event results are stored only if it is
received as part of SAP ACS scan. Channel info is used in
ACS algorithm to select best channel. There is a requirement to
reuse the STA's scan results for SAP to reduce the SAP bringup
time. So store the channel info event results received as part
of STA scan if WLAN_FEATURE_SAP_ACS_OPTIMIZE is enabled.
Change-Id: I99d4e8c13a9e4171c74c63907d29c585f89ecf9e
CRs-Fixed: 3239383