replaces ehrenberg with new implementations

include/minres/devices/interrupt.h

@@ -0,0 +1,11 @@
+#ifndef _DEVICES_INTERRUPT_H
+#define _DEVICES_INTERRUPT_H
+
+#include <stdint.h>
+
+#define irq_t void*
+
+inline void irq_init(volatile irq_t* reg){
+}
+
+#endif /* _DEVICES_INTERRUPT_H */