feat: implemented liballoc for proper malloc

kernel/libc/kprintf.c

@@ -58,6 +58,7 @@ uint32_t vasprintf(char *buf, const char *fmt, va_list args) {
             case 'x':
                 print_int((uint32_t) va_arg(args, uint32_t), arg_width, buf, &ptr, 16);
                 break;
+            case 'i':
             case 'd':
                 print_int((uint32_t) va_arg(args, uint32_t), arg_width, buf, &ptr, 10);
                 break;

kernel/libc/ringqueue.c

@@ -25,7 +25,7 @@ void *create_buffer(int count, int object_size) {
     buffer->count = count;
     buffer->read_pos = 0;
     buffer->write_pos = 0;
-    buffer->mem = malloc(count * object_size);
+    buffer->mem = calloc(object_size, count);
     if (buffer->mem == NULL) {
         free(buffer);
         return NULL;