configure: Add explicit dsputil dependency to mpegvideoenc

Previously, it was an implicit dependency through mpegvideo. Change
this, as implicit dependencies can cause all sorts of trouble.

diff --git a/configure b/configure
index 3a0cae6..2643748 100755 (executable)
--- a/configure
+++ b/configure
@@ -1646,7 +1646,7 @@ rdft_select="fft"
 mpegaudio_select="mpegaudiodsp"
 mpegaudiodsp_select="dct"
 mpegvideo_select="dsputil hpeldsp videodsp"
-mpegvideoenc_select="mpegvideo"
+mpegvideoenc_select="dsputil mpegvideo"
 
 # decoders / encoders
 aac_decoder_select="mdct sinewin"