ext: hal: altera: Add wrapper functions for Altera HAL runtime API's

Add wrapper or helper functions for Altera HAL runtime API's to
enable Altera HAL drivers on Zephyr.

Signed-off-by: Ramakrishna Pallala <[email protected]>

Author: Ramakrishna Pallala

ext/hal/altera/altera_hal/HAL/src/altera_common.c

@@ -66,3 +66,17 @@ void alt_handle_irq(void* base, alt_u32 id)
 void alt_tick (void)
 {
 }
+
+#include "priv/alt_dev_llist.h"
+int alt_dev_llist_insert (alt_dev_llist* dev, alt_llist* list)
+{
+	return 0;
+}
+
+#include "priv/alt_busy_sleep.h"
+#include <kernel.h>
+unsigned int alt_busy_sleep (unsigned int us)
+{
+	k_busy_wait(us);
+	return 0;
+}