buildroot

wilc1000-firmware: new package

Firmware for Atmel Wilc1000 wireless device.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
[Thomas:
  - add missing hash file
  - simplify installation step]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>