Add support for Zephyr based boards such as UNO Q

[KurtE]

Same issue as the ST7735 library:
adafruit/Adafruit-ST7735-Library#222

The zephyr boards do not define pins_arduino.h nor wiring_private.h So updated the file to exclude
them in much the same was as UNO R4 boards.

Verified it built for Portenta H7 running Zephyr. Ran the graphics test after updating the pin number
It ran fine.

[ubidefeo]

@KurtE
I've talked to the team to add some empty pins_arduino.h and wiring_private.h files to the Zephyr core.
I've tested it locally and it compiles.
This library has long-standing PRs which have not been merged, and if we act on the Arduino side it's quite simple to do.
Also those two files should be in every core, since library developers rely on them

[KurtE]

@KurtE I've talked to the team to add some empty pins_arduino.h and wiring_private.h files to the Zephyr core. I've tested it locally and it compiles. This library has long-standing PRs which have not been merged, and if we act on the Arduino side it's quite simple to do. Also those two files should be in every core, since library developers rely on them

I totally agree! Which is why I opened up issue:
arduino/ArduinoCore-zephyr#393
@per1234 changed the name.

Note: I tried earlier (MBED versions) and it was denied.