Move address constants into Hurl struct

src/hulk/hulk.d

@@ -29,9 +29,9 @@ private __gshared HulkHeader hulk_header = {
     &_hulk_bss_size, /* hulk_bss_size */
     &hulk_start, /* entry */
     16u * 1024u, /* stack_size */
-    HULK_VIRTUAL_BASE_ADDRESS, /* virt_base */
-    HULK_VIRTUAL_STACK_TOP_ADDRESS, /* virt_stack_top */
-    HULK_VIRTUAL_FRAMEBUFFER_ADDRESS, /* virt_fb_buffer */
+    Hurl.HULK_BASE, /* virt_base */
+    Hurl.HULK_STACK_TOP, /* virt_stack_top */
+    Hurl.HULK_FRAMEBUFFER, /* virt_fb_buffer */
 };
 
 private void initialize_cpu()
@@ -58,7 +58,7 @@ void hulk_start()
     initialize_cpu();
     Gdt.initialize();
     Idt.initialize();
-    Fb.initialize(cast(uint *)HULK_VIRTUAL_FRAMEBUFFER_ADDRESS,
+    Fb.initialize(cast(uint *)Hurl.HULK_FRAMEBUFFER,
             cast(uint *)hulk_header.bootinfo.fb_buffer1_phys,
             hulk_header.bootinfo.fb.width,
             hulk_header.bootinfo.fb.height,