feat: added support for waiting on an irq

kernel/drivers/keyboard.c

@@ -8,6 +8,7 @@
 #include <libc/ringqueue.h>
 #include <libk/libk.h>
 #include <mem/malloc.h>
+#include <libk/syscall.h>
 
 
 const char scancode_map_lowercase[] = {
@@ -63,7 +64,8 @@ char getc() {
 KeyEvent *get_next_event() {
     KeyEvent *target = malloc(sizeof(KeyEvent));
     if (!ring_buffer_get(keyboard_event_buffer, target)) {
-        k_wait_for_interrupt();
+        syscall_yield_irq(1 << 1);
+//        k_wait_for_interrupt();
         free(target);
         return NULL;
     }