This is a janky way to capitalize the first letter of the word.
strings.Title was kind of overkill anyways I guess, since the reason for
its deprecation wasn't even anything we'd hit in our usage of it (unable
to detect some unicode punctuation for word boundaries... which a
deviceinfo field wouldn't have anyways...)
fixes#12
U-boot files may be used to generate boot images during boot-deploy stage,
for example u-boot's FIT images, android boot images. If there's no u-boot
directory for device, skip copying.
deviceinfo: add UbootBoardname
Alpine u-boot package places board files in separate directories,
/usr/share/u-boot/$boardname. This param specifies device u-boot subdirectory.