Initialize rtc module

src/hulk/hulk.d

@@ -20,6 +20,7 @@ import ldc.llvmasm;
 import hulk.pic;
 import hulk.acpi;
 import hulk.apic;
+import hulk.rtc;
 
 extern extern(C) __gshared ubyte _hulk_bss_size;
 
@@ -73,6 +74,7 @@ void hulk_start()
     pic.initialize();
     acpi.initialize(hulk_header.bootinfo.acpi_xsdt_phys);
     apic.initialize();
+    rtc.initialize();
     sti();
 
     for (;;)