feat(pic): use remap_pic

k/k.c

@@ -26,6 +26,7 @@
 #include "gdt.h"
 #include "idt.h"
 #include "multiboot.h"
+#include "pic.h"
 #include "serial.h"
 #include "stdio.h"
 
@@ -34,6 +35,7 @@ static void k_init(void)
     init_serial();
     init_gdt();
     init_idt();
+    remap_pic();
 }
 
 void k_main(unsigned long magic, multiboot_info_t *info)