[folks] build: Re-add missing API declaration -include for EDS backend

[Philip Withnall <pwithnall src gnome org>]

commit c0b2bceca5a20419b11fce917f8bdf25b1cece51
Author: Philip Withnall <philip withnall collabora co uk>
Date:   Thu Oct 30 18:10:32 2014 +0000

    build: Re-add missing API declaration -include for EDS backend
    
    Originally added in commit 7a9c8133468c1f8eb7fbb0e68a6a7e061b9452fb,
    mistakenly removed in commit 9864169bfd0631ca5b46eccb77c37ea6411059a1.
    Whoops. :-(
    
    Bug reported on the Telepathy mailing list:
    http://lists.freedesktop.org/archives/telepathy/2014-October/006635.html

 backends/eds/lib/Makefile.am |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/backends/eds/lib/Makefile.am b/backends/eds/lib/Makefile.am
index 1c9d5cc..c93fe8e 100644
--- a/backends/eds/lib/Makefile.am
+++ b/backends/eds/lib/Makefile.am
@@ -29,6 +29,7 @@ libfolks_eds_la_VALAFLAGS = \
 
 libfolks_eds_la_CPPFLAGS = \
        $(backend_library_cppflags) \
+       -include folks/redeclare-internal-api.h \
        $(NULL)
 
 libfolks_eds_la_CFLAGS = \