plat: marvell: Update Marvell base code version to 18.09.1
plat: marvell: Update Marvell base code version to 18.09.1

Change-Id: I908844364bf8080612aaa6d750d7d2441ecc2eb8
Signed-off-by: Konstantin Porotchkin <4c7b7a89ae2c24f675bc0a94dfa7c7466687a3de@marvell.com>

achingupta/arm-trusted-firmware,achingupta/arm-trusted-firmware