[tracker] tracker-extract: Fix typo in last commit

[Carlos Garnacho <carlosg src gnome org>]

commit 20c5c8cd3fb1e6b50d4bbeca0f0bbd70a315dc90
Author: Carlos Garnacho <carlosg gnome org>
Date:   Tue Jun 6 18:34:00 2017 +0200

    tracker-extract: Fix typo in last commit
    
    The decoder is bcmdec, not bmcdec. I managed to mistype it all over the
    place.

 src/tracker-extract/tracker-extract-gstreamer.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/tracker-extract/tracker-extract-gstreamer.c b/src/tracker-extract/tracker-extract-gstreamer.c
index 4e6e8dd..9bdcd1b 100644
--- a/src/tracker-extract/tracker-extract-gstreamer.c
+++ b/src/tracker-extract/tracker-extract-gstreamer.c
@@ -1478,7 +1478,7 @@ tracker_extract_module_init (GError **error)
                "vaapivp8dec",
                "vaapivp9dec",
                "vaapih265dec",
-               "bmcdec",
+               "bcmdec",
        };
        GstRegistry *registry;
        guint i;