scd:p15: Add support for D-Trust Card 4.1/4.4
* scd/app-p15.c (CARD_PRODUCT_DTRUST4) New. (app_select_p15): This cards uses a different AID for PKCS#15 application (do_sign): The card doesn't support MSE SET, but requires MSE RESTORE to a predefined template. (do_decipher): Ditto.