avcodec/qpeldsp: Restore author attribution

See: 368f50359e
See:
similarity index 51%
copy from libavcodec/dsputil.c
copy to libavcodec/qpeldsp.c
index 6d41dfc..0beeab8 100644
--- a/libavcodec/dsputil.c
+++ b/libavcodec/qpeldsp.c
@@ -1,9 +1,5 @@
 /*
- * DSP utils
- * Copyright (c) 2000, 2001 Fabrice Bellard
- * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
- *
- * gmc & q-pel & 32/64 bit based MC by Michael Niedermayer <michaelni@gmx.at>
+ * quarterpel DSP functions
  *
  * This file is part of FFmpeg.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/qpeldsp.c

@@ -1,5 +1,7 @@
 /*
  * quarterpel DSP functions
+ * Copyright (c) 2000, 2001 Fabrice Bellard
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
  *
  * This file is part of FFmpeg.
  *