fdt: Rename fdt_resize() to fdt_shrink_to_minimum()

Since libfdt now has an fdt_resize() function, we need to rename the
U-Boot one.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/common/cmd_fdt.c b/common/cmd_fdt.c
index e86d992..5640ded 100644
--- a/common/cmd_fdt.c
+++ b/common/cmd_fdt.c
@@ -621,7 +621,7 @@
 	}
 	/* resize the fdt */
 	else if (strncmp(argv[1], "re", 2) == 0) {
-		fdt_resize(working_fdt);
+		fdt_shrink_to_minimum(working_fdt);
 	}
 	else {
 		/* Unrecognized command */