hikey: flash-all.sh: Update flash-all script to use boot.img, since its the new default

Since the build now produces just a boot.img by default, update
the flash-all.sh script to flash that instead of the boot_fat.uefi.img

Change-Id: Iad9ba135021132cc96c50243ef4ad1f0e0b5ffc9
Signed-off-by: John Stultz <john.stultz@linaro.org>
1 file changed