qcacld-3.0: Refactor roam scan sub-reason string

Add changes to include new roam scan sub-reasons in host driver
roam logging and refactor few existing string.
Below are the new reasons:
WMI_ROAM_TRIGGER_SUB_REASON_LOW_RSSI_PERIODIC
WMI_ROAM_TRIGGER_SUB_REASON_INACTIVITY_TIMER_LOW_RSSI
WMI_ROAM_TRIGGER_SUB_REASON_PERIODIC_TIMER_AFTER_INACTIVITY_CU
WMI_ROAM_TRIGGER_SUB_REASON_PERIODIC_TIMER_AFTER_INACTIVITY_LOW_RSSI
WMI_ROAM_TRIGGER_SUB_REASON_INACTIVITY_TIMER_CU

Change-Id: I1aeb48d29561b48ac7b8762626fa0050f4fb9030
CRs-Fixed: 2742558

components/mlme/dispatcher/src/wlan_mlme_api.c

@@ -3807,18 +3807,22 @@ char *mlme_get_sub_reason_str(uint32_t sub_reason)
 	switch (sub_reason) {
 	case WMI_ROAM_TRIGGER_SUB_REASON_PERIODIC_TIMER:
 		return "PERIODIC TIMER";
-	case WMI_ROAM_TRIGGER_SUB_REASON_INACTIVITY_TIMER:
-		return "INACTIVITY TIMER";
+	case WMI_ROAM_TRIGGER_SUB_REASON_LOW_RSSI_PERIODIC:
+		return "LOW RSSI PERIODIC TIMER1";
 	case WMI_ROAM_TRIGGER_SUB_REASON_BTM_DI_TIMER:
-		return "BTM DISASSOC TIMER";
+		return "BTM DISASSOC IMMINENT TIMER";
 	case WMI_ROAM_TRIGGER_SUB_REASON_FULL_SCAN:
 		return "FULL SCAN";
-	case WMI_ROAM_TRIGGER_SUB_REASON_LOW_RSSI_PERIODIC:
-		return "LOW RSSI PERIODIC SCAN";
 	case WMI_ROAM_TRIGGER_SUB_REASON_CU_PERIODIC:
-		return "CU PERIODIC SCAN";
-	case WMI_ROAM_TRIGGER_SUB_REASCON_PERIODIC_TIMER_AFTER_INACTIVITY:
-		return "PERIODIC TIMER AFTER INACTIVITY";
+		return "CU PERIODIC Timer1";
+	case WMI_ROAM_TRIGGER_SUB_REASON_INACTIVITY_TIMER_LOW_RSSI:
+		return "LOW RSSI INACTIVE TIMER";
+	case WMI_ROAM_TRIGGER_SUB_REASON_PERIODIC_TIMER_AFTER_INACTIVITY_CU:
+		return "CU PERIODIC TIMER2";
+	case WMI_ROAM_TRIGGER_SUB_REASON_PERIODIC_TIMER_AFTER_INACTIVITY_LOW_RSSI:
+		return "LOW RSSI PERIODIC TIMER2";
+	case WMI_ROAM_TRIGGER_SUB_REASON_INACTIVITY_TIMER_CU:
+		return "CU INACTIVITY TIMER";
 	default:
 		return "NONE";
 	}