libavformat/mxfenc: color_range should be inclusive

MXF CDCI color range was being set to (1<<sc->component_depth) - 1
for full range but it should be (1<<sc->component_depth) as 0 is
a valid value.

Signed-off-by: Harry Mallon <harry.mallon@codex.online>

libavformat/mxfenc.c

@@ -1160,7 +1160,7 @@ static int64_t mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID
     if (st->codecpar->color_range != AVCOL_RANGE_UNSPECIFIED) {
         int black = 0,
             white = (1<<sc->component_depth) - 1,
-            color = (1<<sc->component_depth) - 1;
+            color = (1<<sc->component_depth);
         if (st->codecpar->color_range == AVCOL_RANGE_MPEG) {
             black = 1   << (sc->component_depth - 4);
             white = 235 << (sc->component_depth - 8);