[NTOS:IO][NDK] Add the exported IoDeleteDriver to the NDK headers.

ntoskrnl/io/iomgr/driver.c

@@ -1731,7 +1731,8 @@ try_again:
  */
 VOID
 NTAPI
-IoDeleteDriver(IN PDRIVER_OBJECT DriverObject)
+IoDeleteDriver(
+    _In_ PDRIVER_OBJECT DriverObject)
 {
     /* Simply dereference the Object */
     ObDereferenceObject(DriverObject);

sdk/include/ndk/iofuncs.h

@@ -56,6 +56,12 @@ IoCreateDriver(
     _In_ PDRIVER_INITIALIZE InitializationFunction
 );
 
+VOID
+NTAPI
+IoDeleteDriver(
+    _In_ PDRIVER_OBJECT DriverObject
+);
+
 NTSTATUS
 NTAPI
 IoReportHalResourceUsage(