arm: mvebu: clearfog: Unify DT selection paths

Unify the location of DT selection into board_late_init instead of
split between detection and static configuration paths.

Signed-off-by: Joel Johnson <mrjoel@lixil.net>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/board/solidrun/clearfog/clearfog.c b/board/solidrun/clearfog/clearfog.c
index fd9bd95..249ea46 100644
--- a/board/solidrun/clearfog/clearfog.c
+++ b/board/solidrun/clearfog/clearfog.c
@@ -245,6 +245,8 @@
 		env_set("fdtfile", "armada-385-clearfog-gtr-l8.dtb");
 	else if (IS_ENABLED(CONFIG_TARGET_CLEARFOG_BASE))
 		env_set("fdtfile", "armada-388-clearfog-base.dtb");
+	else
+		env_set("fdtfile", "armada-388-clearfog.dtb");
 
 	return 0;
 }