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

@@ -71,6 +71,11 @@ int hws_board_topology_load(struct serdes_map **serdes_map_array, u8 *count)
 	cf_read_tlv_data();
 
 	/* Apply build configuration options before runtime configuration */
+	if (IS_ENABLED(CONFIG_TARGET_CLEARFOG_BASE)) {
+		board_serdes_map[4].serdes_type = USB3_HOST0;
+		board_serdes_map[4].serdes_mode = SERDES_DEFAULT_MODE;
+	}
+
 	if (IS_ENABLED(CONFIG_CLEARFOG_SFP_25GB))
 		board_serdes_map[5].serdes_speed = SERDES_SPEED_3_125_GBPS;