ntdll: Silence warning about TAPE_GetStatus when sys/mtio.h is not available

[André Hentschel]

I at least have that with aarch64-linux-android-clang
---
 dlls/ntdll/tape.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dlls/ntdll/tape.c b/dlls/ntdll/tape.c
index fef31cb..09803d4 100644
--- a/dlls/ntdll/tape.c
+++ b/dlls/ntdll/tape.c
@@ -87,11 +87,13 @@ static const char *io2str( DWORD io )
 /******************************************************************
  *      TAPE_GetStatus
  */
+#ifdef HAVE_SYS_MTIO_H
 static inline NTSTATUS TAPE_GetStatus( int error )
 {
     if (!error) return STATUS_SUCCESS;
     return FILE_GetNtStatus();
 }
+#endif
 
 /******************************************************************
  *      TAPE_CreatePartition
-- 
1.9.1