Tegra210: introduce platform support

This patch introduces support for running TFTF on Tegra210
platforms.

Verified with tftf-validation and psci test suites.

Verified by: Anthony Zhou <anzhou@nvidia.com>
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Change-Id: I48584d0b40142e7f49428b891a1d87a7db41c212
8 files changed