feat: gdt, attributes move, reorder

Added late gdt setup with initial tss
Moved attributes to include root
Reordered some imports

kernel/libk/syscall.c

@@ -2,10 +2,10 @@
 // Created by rick on 22-02-21.
 //
 
+#include <attributes.h>
 #include <sys/types.h>
 
 #include <myke/libk/syscall.h>
-#include <myke/attributes.h>
 
 void syscall1(uint32_t arg1) {
     __asm__("int $0x80"
@@ -19,7 +19,7 @@ void syscall2(uint32_t arg1, uint32_t arg2) {
     : "a"(arg1), "b"(arg2));
 }
 
-void noreturn syscall_start_scheduler() {
+void att_noreturn syscall_start_scheduler() {
     syscall1(SYSCALL_START_SCHEDULER);
     while (1) { __asm__("hlt"); };
 }