Import scripts/basic/bin2c.c of Linux.
In Linux Kernel, this file was moved to scripts/basic directory by
commit 8370edea81e3 ("bin2c: move bin2c in scripts/basic").
In U-Boot, we do not need to follow that commit. Just put it in the
original directory "scripts".
Signed-off-by: Masahiro Yamada <email@example.com>
Reviewed-by: Simon Glass <firstname.lastname@example.org>