In this email, I want to check: is there anybody who are still working with fastboot and these two (boot-fat.emmc.img and dtb) files? If nobody reply, I will remove them.\
So, here is what and why. :)
As some of you may know, Fastboot (as bootloader) is deprecated for hikey. (As a replacement, ATF/UEFI should be used. Linaro releases ATF/UEFI for hikey in source code and in binary). But for backward compatibility, we still release kernel images and dtbs which can work together with fastboot in snapshot builds for a long time.
== FYI.