qcacmn: Add roam set param command for roam params

This change introduces the new roam set param WMI command to set
the roam params from host to FW.
Also added a fail_bssid param in wmi_roam_result TLV to know the
roam failed AP BSSID from the FW.
Added a new vendor command event for sending roam events stats
attributes to userspace.

Change-Id: I7a08635a7912cbd940d90a2d62433296740ad913
CRs-Fixed: 3050799

os_if/linux/wlan_cfg80211.h

@@ -245,6 +245,9 @@ enum qca_nl80211_vendor_subcmds_index {
 #ifdef WLAN_FEATURE_CONNECTIVITY_LOGGING
 	QCA_NL80211_VENDOR_SUBCMD_DIAG_EVENT_INDEX,
 #endif
+#ifdef WLAN_FEATURE_ROAM_OFFLOAD
+	QCA_NL80211_VENDOR_SUBCMD_ROAM_EVENTS_INDEX,
+#endif
 };
 
 #if !defined(SUPPORT_WDEV_CFG80211_VENDOR_EVENT_ALLOC) && \