ufs: Correct the UFS terminlogy

UFS stands for Universal Flash Storage, not Subsytem.

Signed-off-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Neha Malcom Francis <n-francis@ti.com>
diff --git a/cmd/Kconfig b/cmd/Kconfig
index 6470b13..a59c67e 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -1536,7 +1536,7 @@
 	  Turndra tsi148 device. See the command help for full details.
 
 config CMD_UFS
-	bool "Enable UFS - Universal Flash Subsystem commands"
+	bool "Enable UFS - Universal Flash Storage commands"
 	depends on UFS
 	help
 	  "This provides commands to initialise and configure universal flash
diff --git a/drivers/ufs/ufs-uclass.c b/drivers/ufs/ufs-uclass.c
index ceea30c..ffae811 100644
--- a/drivers/ufs/ufs-uclass.c
+++ b/drivers/ufs/ufs-uclass.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /**
- * ufs-uclass.c - Universal Flash Subsystem (UFS) Uclass driver
+ * ufs-uclass.c - Universal Flash Storage (UFS) Uclass driver
  *
  * Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com
  */
diff --git a/drivers/ufs/ufs.c b/drivers/ufs/ufs.c
index 7c48d57..f534d6e 100644
--- a/drivers/ufs/ufs.c
+++ b/drivers/ufs/ufs.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0+
 /**
- * ufs.c - Universal Flash Subsystem (UFS) driver
+ * ufs.c - Universal Flash Storage (UFS) driver
  *
  * Taken from Linux Kernel v5.2 (drivers/scsi/ufs/ufshcd.c) and ported
  * to u-boot.