Add build-time oasis dependency to ezxenstore (suggested by @gabori)
Add build-time oasis dependency to ezxenstore (suggested by @gabori)

Signed-off-by: Jon Ludlam <e7e3380887a8f95cc9dc4f0d51dedc7e849a287a@citrix.com>

xapi-project/xs-opam,gaborigloi/xs-opam,mseri/xs-opam,lindig/xs-opam,mseri/xs-opam