hikey960: Switch default flash-all to use the UEFI bootloader.

Switch the flash-all.sh script to flash the UEFI bootloader,
but for compatibility keep uefi-flash-all.sh (which just calls
flash-all.sh), and move the old flash-all.sh script to
legacy-flash-all.sh just in case folks find they need it.

Signed-off-by: John Stultz <john.stultz@linaro.org>
Change-Id: I20f686813e63ef6f0a2c5e09d444ceeaa87be65a
3 files changed