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/doc/README.s5p4418 b/doc/README.s5p4418
index ac724d0..8ec7b05 100644
--- a/doc/README.s5p4418
+++ b/doc/README.s5p4418
@@ -38,7 +38,7 @@
 Links
 =====
 
-[1] FriendlyArm U-boot v2016.01:
+[1] FriendlyArm U-Boot v2016.01:
 
 https://github.com/friendlyarm/u-boot/tree/nanopi2-v2016.01