core: Added national roaming info for Jazztel Movil in Spain

Users of Jazztel in Spain (MCC214 MNC21) can roam on Orange (MCC214 MNC03).

Change-Id: I2d4a3affcd05112e75f4b70e49bfe823bb57a9ba
Signed-off-by: arnau <arnaullv@gmail.com>