cmd: Make use of U_BOOT_LONGHELP when missing

After adding the U_BOOT_LONGHELP macro some new commands came in still
that were not making use if it. Switch these cases over and in a few
places add missing newlines as well.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/cmd/scmi.c b/cmd/scmi.c
index 664062c..cfbca63 100644
--- a/cmd/scmi.c
+++ b/cmd/scmi.c
@@ -369,7 +369,7 @@
 	return cp->cmd(cmdtp, flag, argc, argv);
 }
 
-static char scmi_help_text[] =
+U_BOOT_LONGHELP(scmi,
 	" - SCMI utility\n"
 	" info - get the info of SCMI services\n"
 	" perm_dev <agent-id in hex> <device-id in hex> <flags in hex>\n"
@@ -377,8 +377,7 @@
 	" perm_proto <agent-id in hex> <device-id in hex> <protocol-id in hex> <flags in hex>\n"
 	"   - set protocol permission to device\n"
 	" reset <agent-id in hex> <flags in hex>\n"
-	"   - reset platform resource settings\n"
-	"";
+	"   - reset platform resource settings\n");
 
 U_BOOT_CMD(scmi, CONFIG_SYS_MAXARGS, 0, do_scmi, "SCMI utility",
 	   scmi_help_text);