feat: added support for waiting on an irq

kernel/libk/syscall.c

@@ -12,11 +12,21 @@ void syscall1(uint32_t arg1) {
     : "a"(arg1));
 }
 
-void syscall_yield_job() {
-    syscall1(SYSCALL_YIELD_JOB);
+void syscall2(uint32_t arg1, uint32_t arg2) {
+    __asm__("int $0x80"
+    :
+    : "a"(arg1), "b"(arg2));
 }
 
 void noreturn syscall_start_scheduler() {
     syscall1(SYSCALL_START_SCHEDULER);
     while (1) { __asm__("hlt"); };
-}
+}
+
+void syscall_yield_job() {
+    syscall1(SYSCALL_YIELD_JOB);
+}
+
+void syscall_yield_irq(uint16_t irq) {
+    syscall2(SYSCALL_YIELD_IRQ, irq );
+}