board: solidrun: clearfog: fix clearfog base m.2 usb-3.0

Clearfog Base unlike Pro routes serdes 4 to an m.2 connector as usb-3.0
host.

Update serdes map accordingly when u-boot is explicitly built for
Clearfog Base.

Signed-off-by: Josua Mayer <josua@solid-run.com>

board/solidrun/clearfog/clearfog.c

@@ -88,6 +88,11 @@ int hws_board_topology_load(struct serdes_map **serdes_map_array, u8 *count)
 		board_serdes_map[2].swap_rx = 1;
 	}
 
+	if (IS_ENABLED(CONFIG_TARGET_CLEARFOG_BASE)) {
+		board_serdes_map[4].serdes_type = USB3_HOST0;
+		board_serdes_map[4].serdes_mode = SERDES_DEFAULT_MODE;
+	}
+
 	/* Apply runtime detection changes */
 	if (sr_product_is(&cf_tlv_data, "Clearfog GTR")) {
 		if (IS_ENABLED(CONFIG_CLEARFOG_GTR_SERDES0_SATA)) {