Add support for Tegra210

This patch adds support for Tegra210. The command option is

--soc tegra210 or -s tegra210

T210 specific files are added under src/t210 directory.

Main changes from earlier soc are many new fileds are added to
structure nvboot_sdram_params and the number of boot devices
that can be defined within bct is reduced from 4 to 1.

Signed-off-by: Jimmy Zhang <jimmzhang@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
12 files changed