Use correct spelling of "U-Boot"

Correct spelling of "U-Boot" shall be used in all written text
(documentation, comments in source files etc.).

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Minkyu Kang <mk7.kang@samsung.com>
diff --git a/board/freescale/t208xqds/README b/board/freescale/t208xqds/README
index 83060c1..2a2a0e5 100755
--- a/board/freescale/t208xqds/README
+++ b/board/freescale/t208xqds/README
@@ -92,7 +92,7 @@
  10GBASE-KR scenario.
  So, for XFI usage, there are two scenarios, one will use fiber cable,
  another will use copper cable. An hwconfig env "fsl_10gkr_copper" is
- introduced to indicate a XFI port will use copper cable, and U-boot
+ introduced to indicate a XFI port will use copper cable, and U-Boot
  will fixup the dtb accordingly.
  It's used as: fsl_10gkr_copper:<10g_mac_name>
  The <10g_mac_name> can be fm1_10g1, fm1_10g2, fm1_10g3, fm1_10g4, they
@@ -108,7 +108,7 @@
  - T2080QDS can support 1G-KX by using SGMII protocol, but serdes lane
  runs in 1G-KX mode. By default, the lane runs in SGMII mode, to set a lane
  in 1G-KX mode, need to set corresponding bit in SerDes Protocol Configuration
- Register 1 (PCCR1), and U-boot fixup the dtb for kernel to do proper
+ Register 1 (PCCR1), and U-Boot fixup the dtb for kernel to do proper
  initialization.
  Hwconfig "fsl_1gkx" is used to indicate a lane runs in 1G-KX mode, MAC
  1/2/5/6/9/10 are available for 1G-KX, MAC 3/4 run in RGMII mode. To set a
@@ -142,15 +142,15 @@
 128M NOR Flash memory Map
 -------------------------
 Start Address   End Address	Definition			Max size
-0xEFF40000	0xEFFFFFFF	u-boot (current bank)		768KB
-0xEFF20000	0xEFF3FFFF	u-boot env (current bank)	128KB
+0xEFF40000	0xEFFFFFFF	U-Boot (current bank)		768KB
+0xEFF20000	0xEFF3FFFF	U-Boot env (current bank)	128KB
 0xEFF00000	0xEFF1FFFF	FMAN Ucode (current bank)	128KB
 0xED300000	0xEFEFFFFF	rootfs (alt bank)		44MB
 0xEC800000	0xEC8FFFFF	Hardware device tree (alt bank)	1MB
 0xEC020000	0xEC7FFFFF	Linux.uImage (alt bank)		7MB + 875KB
 0xEC000000	0xEC01FFFF	RCW (alt bank)			128KB
-0xEBF40000	0xEBFFFFFF	u-boot (alt bank)		768KB
-0xEBF20000	0xEBF3FFFF	u-boot env (alt bank)		128KB
+0xEBF40000	0xEBFFFFFF	U-Boot (alt bank)		768KB
+0xEBF20000	0xEBF3FFFF	U-Boot env (alt bank)		128KB
 0xEBF00000	0xEBF1FFFF	FMAN ucode (alt bank)		128KB
 0xE9300000	0xEBEFFFFF	rootfs (current bank)		44MB
 0xE8800000	0xE88FFFFF	Hardware device tree (cur bank)	1MB
@@ -172,11 +172,11 @@
 
    Switching between default bank0 and alternate bank4 on NOR flash
    To change boot source to vbank4:
-	by software:   run command 'qixis_reset altbank' in u-boot.
+	by software:   run command 'qixis_reset altbank' in U-Boot.
 	by DIP-switch: set SW6[1:4] = '0100'
 
    To change boot source to vbank0:
-	by software:   run command 'qixis_reset' in u-boot.
+	by software:   run command 'qixis_reset' in U-Boot.
 	by DIP-Switch: set SW6[1:4] = '0000'
 
 2. NAND Boot:
@@ -216,8 +216,8 @@
 -------------------------------
 PBL initializes the internal CPC-SRAM and copy SPL(160K) to SRAM.
 SPL further initializes DDR using SPD and environment variables
-and copy u-boot(768 KB) from NAND/SPI/SD device to DDR.
-Finally SPL transers control to u-boot for futher booting.
+and copy U-Boot(768 KB) from NAND/SPI/SD device to DDR.
+Finally SPL transers control to U-Boot for futher booting.
 
 SPL has following features:
  - Executes within 256K
@@ -237,30 +237,30 @@
 -------------------------------------------------
 |STACK		   | 0xFFFD8000 (22KB)		|
 -------------------------------------------------
-|U-boot SPL	   | 0xFFFD8000 (160KB)		|
+|U-Boot SPL	   | 0xFFFD8000 (160KB)		|
 -------------------------------------------------
 
 NAND Flash memory Map on T2080QDS
 --------------------------------------------------------------
 Start		End		Definition	Size
-0x000000	0x0FFFFF	u-boot img	1MB  (2 blocks)
-0x100000	0x17FFFF	u-boot env	512KB (1 block)
+0x000000	0x0FFFFF	U-Boot img	1MB  (2 blocks)
+0x100000	0x17FFFF	U-Boot env	512KB (1 block)
 0x180000	0x1FFFFF	FMAN ucode	512KB (1 block)
 
 
 Micro SD Card memory Map on T2080QDS
 ----------------------------------------------------
 Block		#blocks		Definition	Size
-0x008		2048		u-boot img	1MB
-0x800		0016		u-boot env	8KB
+0x008		2048		U-Boot img	1MB
+0x800		0016		U-Boot env	8KB
 0x820		0128		FMAN ucode	64KB
 
 
 SPI Flash memory Map on T2080QDS
 ----------------------------------------------------
 Start		End		Definition	Size
-0x000000	0x0FFFFF	u-boot img	1MB
-0x100000	0x101FFF	u-boot env	8KB
+0x000000	0x0FFFFF	U-Boot img	1MB
+0x100000	0x101FFF	U-Boot env	8KB
 0x110000	0x11FFFF	FMAN ucode	64KB