qcacmn: Add support for GMAC offload

Add support for GMAC offload capability wmi_service_gmac_offload_support

Change-Id: I4a2e5c52aae630f82294dcaea6cc7c23886dcd8a
CRs-Fixed: 2185825

wmi_unified_param.h

@@ -5983,6 +5983,7 @@ typedef enum {
 	wmi_service_11k_neighbour_report_support,
 	wmi_service_ap_obss_detection_offload,
 	wmi_service_bss_color_offload,
+	wmi_service_gmac_offload_support,
 
 	wmi_services_max,
 } wmi_conv_service_ids;