global: Use proper project name U-Boot

Use proper project name in comments, Kconfig, readmes.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/0dbdf0432405c1c38ffca55703b6737a48219e79.1684307818.git.michal.simek@amd.com
diff --git a/arch/arm/cpu/armv7/Kconfig b/arch/arm/cpu/armv7/Kconfig
index e33e536..ccc2f20 100644
--- a/arch/arm/cpu/armv7/Kconfig
+++ b/arch/arm/cpu/armv7/Kconfig
@@ -110,7 +110,7 @@
 config ARMV7_SET_CORTEX_SMPEN
 	bool
 	help
-	  Enable the ARM Cortex ACTLR.SMP enable bit in U-boot.
+	  Enable the ARM Cortex ACTLR.SMP enable bit in U-Boot.
 
 config SPL_ARMV7_SET_CORTEX_SMPEN
 	bool
diff --git a/arch/arm/cpu/armv8/Kconfig b/arch/arm/cpu/armv8/Kconfig
index 7d5cf15..9f0fb36 100644
--- a/arch/arm/cpu/armv8/Kconfig
+++ b/arch/arm/cpu/armv8/Kconfig
@@ -145,7 +145,7 @@
 	bool "Enable PSCI support" if EXPERT
 	help
 	  PSCI is Power State Coordination Interface defined by ARM.
-	  The PSCI in U-boot provides a general framework and each platform
+	  The PSCI in U-Boot provides a general framework and each platform
 	  can implement their own specific PSCI functions.
 	  Say Y here to enable PSCI support on ARMv8 platform.
 
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/doc/README.lsch3 b/arch/arm/cpu/armv8/fsl-layerscape/doc/README.lsch3
index 6f3fe7c..1ddf947 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/doc/README.lsch3
+++ b/arch/arm/cpu/armv8/fsl-layerscape/doc/README.lsch3
@@ -125,7 +125,7 @@
 		from the location where it is stored(NOR, NAND, SD, SATA, USB)during
 		u-boot booting.If this variable is not defined then MC_BOOT_ENV_VAR
 		will be null and MC will not be booted and DPL will not be applied
-		during U-boot booting.However the MC, DPC and DPL can be applied from
+		during U-Boot booting.However the MC, DPC and DPL can be applied from
 		console independently.
 		The variable needs to be set from the console once and then on
 		rebooting the parameters set in the variable will automatically be