rewrite comments into one, unified style

code/public/ntlite/ddi/pci.h

@@ -1,6 +1,8 @@
+// Public NTLite pci ABI declarations shared between kernel, drivers, and user mode.
+
 #pragma once
 // pci.h - PCI bus driver DDI exported by pci.sys
-//
+
 // Function drivers must not enumerate PCI or decode BARs themselves.  They bind
 // to PCI PDOs through the I/O manager and use these routines to access the PCI
 // function represented by their PDO.