various cmd_* files: fixed layout a little bit

Most of the files have U_BOOT_CMD on a separate line,
but a few didn't and had the first line on the same line
as U_BOOT_CMD.

This changes these files by adding a line break and a tab

Signed-off-by: Frans Meulenbroeks <fransmeulenbroeks@gmail.com>
diff --git a/common/cmd_nand.c b/common/cmd_nand.c
index 0f47a25..3f1d077 100644
--- a/common/cmd_nand.c
+++ b/common/cmd_nand.c
@@ -579,7 +579,8 @@
 	return cmd_usage(cmdtp);
 }
 
-U_BOOT_CMD(nand, CONFIG_SYS_MAXARGS, 1, do_nand,
+U_BOOT_CMD(
+	nand, CONFIG_SYS_MAXARGS, 1, do_nand,
 	"NAND sub-system",
 	"info - show available NAND devices\n"
 	"nand device [dev] - show or set current device\n"