[grilo-plugins] configure: fix check for chromaprint plugin

[Victor Toso de Carvalho <victortoso src gnome org>]

commit 9341f5ae72a5e132e843ee3946259c0d72af6779
Author: Victor Toso <me victortoso com>
Date:   Thu Jun 16 17:41:08 2016 +0200

    configure: fix check for chromaprint plugin
    
    Otherwise it fails to check against --enable-chromaprint

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 1ddef0e..9defc7e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1065,7 +1065,7 @@ dnl Check for required plugins
 gst10_toolsdir=`$PKG_CONFIG --variable=toolsdir gstreamer-1.0`
 gst10_inspect="$gst10_toolsdir/gst-inspect-1.0"
 
-AC_ARG_ENABLE(gstreamer,
+AC_ARG_ENABLE(chromaprint,
         AC_HELP_STRING([--enable-chromaprint],
                 [enable chromaprint plugin (default: auto)]),
         [