Add gpio-keys codes for all boards. These are mostly INPUT_KEY_0 and so
on but I've used some more specific ones where it was obvious that
there's something else on the boards.
Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
Add initial support for the GDF450V-START board. GPIO (LED/Button), PWM
and UART have been tested successfully.
Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>