[grilo-plugins] build: Add new plugins to distcheck

[Juan A. Suarez Romero <jasuarez src gnome org>]

commit 54b059c46f27fc23f3f6203a8bcc59af051c2fab
Author: Juan A. Suarez Romero <jasuarez igalia com>
Date:   Tue Feb 11 09:41:58 2014 +0000

    build: Add new plugins to distcheck

 Makefile.am |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index a4702f6..ac5547f 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -41,13 +41,16 @@ DISTCHECK_CONFIGURE_FLAGS = --enable-apple-trailers \
                             --enable-dmap \
                             --enable-filesystem \
                             --enable-flickr \
+                            --enable-freebox \
                             --enable-gravatar \
+                            --enable-guardianvideos \
                             --enable-jamendo \
                             --enable-lastfm-albumart \
                             --enable-localmetadata \
                             --enable-magnatune \
                             --enable-metadata-store \
                             --enable-optical-media \
+                            --enable-pocket \
                             --enable-podcasts \
                             --enable-tmdb \
                             --enable-tracker \