libopenjpegdec: increase max lowres from 5 to 31

OpenJPEG doesn't have a particular limit
Signed-off-by: Michael Bradshaw <mbradshaw@sorensonmedia.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/libopenjpegdec.c

@@ -415,7 +415,7 @@ AVCodec ff_libopenjpeg_decoder = {
     .close            = libopenjpeg_decode_close,
     .decode           = libopenjpeg_decode_frame,
     .capabilities     = CODEC_CAP_DR1 | CODEC_CAP_FRAME_THREADS,
-    .max_lowres       = 5,
+    .max_lowres       = 31,
     .long_name        = NULL_IF_CONFIG_SMALL("OpenJPEG JPEG 2000"),
     .priv_class       = &class,
     .init_thread_copy = ONLY_IF_THREADS_ENABLED(libopenjpeg_decode_init_thread_copy),