plat: marvell: armada: reduce memory size reserved for FIP image

It is not needed to reserve 64MB for FIP. Limit this to 4MB
for both supported Armada SoC families.

Change-Id: I58a8ce4408a646fe1afd3c1ea1ed54007c8d205d
Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
[Extract from bigger commit]
Signed-off-by: Marcin Wojtas <mw@semihalf.com>
2 files changed