The board have one user button and a user led but are not enabled.
This add necessary support to use the button and the led. It include
the configs to use with SAUL and button interrupt.
Signed-off-by: Gerson Fernando Budke <nandojve@gmail.com>
Add ATmega328P Xplained Mini board. The board is an official
development kit from MCHP based on the Arduino UNO, reduced
hardware, with a xplainedmini debugger and CDC ACM serial
converter.
Signed-off-by: Gerson Fernando Budke <nandojve@gmail.com>
