[COMMON] Update _mariadb.tpl to use the proper db

Update common.mariadbService definition under _mariadb.tpl to use the
proper name of DB in case of local installation

Issue-ID: OOM-2736
Signed-off-by: Mahmoud Abdelhamid <mahmoud.abdelhamid@orange.com>
Change-Id: I454915d493f692076eadbf6ccd69c2d93f36ffc4
1 file changed