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/bsc9132qds/README b/board/freescale/bsc9132qds/README
index f8377c9..ede95d4 100644
--- a/board/freescale/bsc9132qds/README
+++ b/board/freescale/bsc9132qds/README
@@ -87,9 +87,9 @@
 --------------------
 NOR boot
 
-Building U-boot
+Building U-Boot
 --------------
-To build the u-boot for BSC9132QDS:
+To build the U-Boot for BSC9132QDS:
 1. NOR Flash
 	make BSC9132QDS_NOR_DDRCLK100 : For 100MHZ DDR CLK
 	make BSC9132QDS_NOR_DDRCLK133 : For 133MHZ DDR CLK
@@ -122,7 +122,7 @@
 
 Flashing Images
 ---------------
-To place a new u-boot image in the NAND flash and then boot
+To place a new U-Boot image in the NAND flash and then boot
 with that new image temporarily, use this:
 	tftp 1000000 u-boot-nand.bin
 	nand erase 0 100000