qcacmn: Add static window support for UMAC and CE access in 6750

Use static window for accessing UMAC and CE register in qca6750. For
UMAC and CE register access, separate static window is mapped. Host
accesses these registers using relative offset to window address.

Change-Id: I7940336579553f05a11f1379f635689d08508c56
CRs-Fixed: 2617684

hal/wifi3.0/hal_srng.c

@@ -258,6 +258,7 @@ static void hal_target_based_configure(struct hal_soc *hal)
 #ifdef QCA_WIFI_QCA6750
 		case TARGET_TYPE_QCA6750:
 			hal->use_register_windowing = true;
+			hal->static_window_map = true;
 			hal_qca6750_attach(hal);
 		break;
 #endif