add android device-control composite
add the backend name into the buffer name
adb: be more android compliant on the reboot command
adb: remove non-standard efi-shell command
fix message
fastboot: fix flash command bug
control: small improvements
fastboot: flash image
device-control: remove unecessary dctrl-buf-fmt constant
introduce smart device selection
suport the empty adb:reboot target
Merge pull request #1 from jeremy-compostella/master

Align with Jeremy's device-control