Add the Altera HAL sources from Altera Quartus Lite SDK.

Origin: Altera Quartus Prime Lite SDK
URL: http://dl.altera.com/?edition=lite


Version: v17.0
Purpose: Provides HAL support to Altera's soft IP's
Maintained-by: External

Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>