anavi-smiley.dts: Add example device tree overlay
anavi-smiley.dts: Add example device tree overlay

Add dts to compile a dtbo for ANAVI Smiley. The button acts like
"A", LED1 indicates the CPU0 activity and LED2 the heartbeat.
The configuration is for pins 33, 35, 37 and 39, aka the last 4
pins (from left to right) on the 1st row of the 40-pin header.

To compile run and deploy run:

dtc -I dts -O dtb -o anavi-smiley.dtbo anavi-smiley.dts
sudo cp anavi-smiley.dtbo /boot/overlays/

Add to config.txt the following lines and reboot to take effect:

dtoverlay=anavi-smiley
gpio=26=pu

Signed-off-by: Leon Anavi <be92910ae7bb6f58bb9b7c6f845bc30640119592@anavi.org>

AnaviTech/anavi-examples,AnaviTech/anavi-examples