arm: tegra: sysedp: Move table selection

arm: tegra: sysedp: Move table selection

Add tegra_get_sysedp_corecap() function to retrieve the correct
AP+DRAM table. This removes the need of SKU handling in board specific
code.

Change-Id: I7aed05d8e515145336d78133e1df58e47504baaa
Signed-off-by: Timo Alho <talho@nvidia.com>
Reviewed-on: http://git-master/r/378267
Reviewed-by: Steve Rogers <srogers@nvidia.com>
Tested-by: Steve Rogers <srogers@nvidia.com>
Reviewed-by: Andy Carman <acarman@nvidia.com>
Reviewed-by: Aleksandr Frid <afrid@nvidia.com>
Reviewed-by: Mitch Luban <mluban@nvidia.com>