plat/marvell: remove subversion from Marvell make files

Subversion is not reflecting the Marvell sources variant anymore.
This patch removes version.mk from Marvell plafroms.

Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
Change-Id: I8f3afbe3fab3a38da68876f77455f449f5fe0179
2 files changed