treewide: capitalize 'USB'

Change-Id: I7650786ea50465a4c2d11de948fdb81f4e509772
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39100
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/kontron/ktqm77/early_init.c b/src/mainboard/kontron/ktqm77/early_init.c
index eac19f4..df5f57e 100644
--- a/src/mainboard/kontron/ktqm77/early_init.c
+++ b/src/mainboard/kontron/ktqm77/early_init.c
@@ -99,7 +99,7 @@
 		.dimm_channel1_disabled = 2,
 		.max_ddr3_freq = 1600,
 		.usb_port_config = {
-			 /* enabled   usb oc pin    length */
+			 /* enabled   USB oc pin    length */
 			{ 1, 0, 0x0040 }, /* P0: lower left USB 3.0 (OC0) */
 			{ 1, 0, 0x0040 }, /* P1: upper left USB 3.0 (OC0) */
 			{ 1, 0, 0x0040 }, /* P2: lower right USB 3.0 (OC0) */
@@ -127,7 +127,7 @@
 }
 
 const struct southbridge_usb_port mainboard_usb_ports[] = {
-	/* enabled power  usb oc pin  */
+	/* enabled power  USB oc pin  */
 	{ 1, 0, 0 }, /* P0: lower left USB 3.0 (OC0) */
 	{ 1, 0, 0 }, /* P1: upper left USB 3.0 (OC0) */
 	{ 1, 0, 0 }, /* P2: lower right USB 3.0 (OC0) */