This driver introduces an emulated LCD display for the native POSIX
board. The emulated display driver makes use of SDL2 to render the
displays frame buffer into a dedicated desktop window.
Signed-off-by: Jan Van Winkel <jan.van_winkel@dxplore.eu>
API for display drivers, supporting:
* Turning on/off display blanking
* Writing/Reading a bit map towards/from the display
* Requesting framebuffer pointer
* Setting display contrast and brightness
* Querying display capabilities
* Changing pixel format
* Changing display orientation
Signed-off-by: Jan Van Winkel <jan.van_winkel@dxplore.eu>