fix make for a21, PIDs are always ints, linter things

kernel/debug/assert.cc

@@ -1,7 +1,7 @@
 #include "assert.h"
 
 #include "../arch/core.h"
-#include "output.h"
+#include "./output.h"
 
 [[noreturn]] void assertion_failed(const char* exp, const char* func,
 								   const char* file, int line) {

kernel/debug/assert.h

@@ -15,7 +15,7 @@
  */
 
 #pragma once
-#include "../types.h"
+#include "types.h"
 
 #ifndef STRINGIFY
 /*! \def STRINGIFY(S)