tests: Fix under-linking for EDS tests
tests: Fix under-linking for EDS tests

They need to link to the libebook and libedataserver libraries as well.

https://bugzilla.gnome.org/show_bug.cgi?id=781485

GNOME/folks,GNOME/folks,GNOME/folks,pwithnall/folks,pwithnall/folks,pwithnall/folks