Add the basic infrastructure like driver <-> IRQ mapping table
and ZEPHYR_RTOS compile time flag which are neccessary to make
use the HAL drivers from Zephyr shim drivers.
Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
Add the Altera HAL sources from Altera Quartus Lite SDK
to Zephyr OS under 'ext/hal/altera' folder.
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: Ramakrishna Pallala <ramakrishna.pallala@intel.com>