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_strings.c b/common/cmd_strings.c
index 144a6c1..2986324 100644
--- a/common/cmd_strings.c
+++ b/common/cmd_strings.c
@@ -38,7 +38,8 @@
 	return 0;
 }
 
-U_BOOT_CMD(strings, 3, 1, do_strings,
+U_BOOT_CMD(
+	strings, 3, 1, do_strings,
 	"display strings",
 	"<addr> [byte count]\n"
 	"    - display strings at <addr> for at least [byte count] or first double NUL"