Rearrange AHCI code, attempt to read WIP

src/kernel/ahci/driver.cpp

@@ -0,0 +1,19 @@
+#include "kutil/enum_bitfields.h"
+#include "ahci/driver.h"
+#include "log.h"
+#include "pci.h"
+
+
+ahci_driver::ahci_driver()
+{
+}
+
+void
+ahci_driver::register_device(pci_device *device)
+{
+	log::info(logs::driver, "AHCI registering device %d:%d:%d:",
+			device->bus(), device->device(), device->function());
+
+	m_devices.emplace(device);
+}
+