debian/patches: Initial support for MyIR Remi Pi board

Remi Pi is a cost effective SBC base on Renesa RZ/GL SoC

https://www.myirtech.com/list.asp?id=754

The HDMI output going from the MIPI-DSI to the LT8912b HDMI bridge doesn't work yet. Sound support has not been tested at this point.

Working: eMMC, serial, i2c, Ethernet, USB.