qcacmn: pmo feature flag disable

In case PMO feature flag disable, add this change. Change
WLAN_PMO_ENABLE  to WLAN_POWER_MANAGEMENT_OFFLOAD.

Change-Id: I875e568dcb239da1b86d1a76cb8cbc925bb13cde
CRs-Fixed: 2243948
diff --git a/wmi_unified_api.h b/wmi_unified_api.h
index a1f75e3..a3726df 100644
--- a/wmi_unified_api.h
+++ b/wmi_unified_api.h
@@ -33,7 +33,7 @@
 #include "service_ready_param.h"
 #include "wlan_objmgr_psoc_obj.h"
 #include "wlan_mgmt_txrx_utils_api.h"
-#ifdef WLAN_PMO_ENABLE
+#ifdef WLAN_POWER_MANAGEMENT_OFFLOAD
 #include "wmi_unified_pmo_api.h"
 #endif
 #ifdef CONVERGED_P2P_ENABLE