fw-api: CL 3535124 - update fw common interface files

add WMI_ROAM_NOTIF_SUBNET_CHANGED constant def

Change-Id: I19d695a600a8fde4cfdcd09e5f1606643828509a
CRs-Fixed: 1107600

fw/wmi_unified.h

@@ -10354,6 +10354,7 @@ typedef enum
 #define WMI_ROAM_NOTIF_SCAN_MODE_SUCCESS 0x4 /** indicate that roaming scan mode is successful */
 #define WMI_ROAM_NOTIF_SCAN_MODE_FAIL    0x5 /** indicate that roaming scan mode is failed due to internal roaming state */
 #define WMI_ROAM_NOTIF_DISCONNECT        0x6 /** indicate that roaming not allowed due BTM req */
+#define WMI_ROAM_NOTIF_SUBNET_CHANGED    0x7 /** indicate that subnet has changed */
 
 /**whenever RIC request information change, host driver should pass all ric related information to firmware (now only support tsepc)
 * Once, 11r roaming happens, firmware can generate RIC request in reassoc request based on these informations