Add support to configure the concurrent session policies
when multiple STA ifaces are getting active via the
CONCURRENT_DUAL_STA_POLICY vendor command.
Possible values associated with this vendor command are:
1. QCA_WLAN_CONCURRENT_STA_POLICY_PREFER_PRIMARY:
This indicates host to give preference to the Primary
STA interface while selecting the connection policies
(e.g., BSSID, Band, TX/RX chains, etc).
2. QCA_WLAN_CONCURRENT_STA_POLICY_UNBIASED:
This indicates connection policies for the subsequent STA
connection shall be chosen to balance with the existing
concurrent STA's performance.
Change-Id: I56994a182bb54adca57c3fc8fce9963b5db37b79
CRs-Fixed: 2915718
31df4c4960