staging: r8188eu: use defines for addba response status

Replace the numeric values with defines from ieee80211.h.
Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220515152759.335889-1-martin@kaiser.cxSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/core/rtw_mlme_ext.c

@@ -1504,7 +1504,8 @@ unsigned int OnAction_back(struct adapter *padapter, struct recv_frame *precv_fr
 		preorder_ctrl->enable = pmlmeinfo->bAcceptAddbaReq;
 
 		issue_action_BA(padapter, mgmt->sa, WLAN_ACTION_ADDBA_RESP,
-				pmlmeinfo->bAcceptAddbaReq ? 0 : 37);
+				pmlmeinfo->bAcceptAddbaReq ?
+					WLAN_STATUS_SUCCESS : WLAN_STATUS_REQUEST_DECLINED);
 		break;
 	case WLAN_ACTION_ADDBA_RESP:
 		tid = u16_get_bits(le16_to_cpu(mgmt->u.action.u.addba_resp.capab),