arm: tegra: Support for core_edp and panel type from kernel command.

Selecting the core EDP voltage and panel type from the kernel commands.
The bootloader pass this information through kernel command.

Board will select the default configuration if there is no command option
for these parameters.

bug 822053

Original-Change-Id: Id7909d70b599c4a313d60d3ba2a9cf5b9eb7f2c3
Reviewed-on: http://git-master/r/30853
Tested-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: Aleksandr Frid <afrid@nvidia.com>
Reviewed-by: Jonathan Mayo <jmayo@nvidia.com>
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>

Rebase-Id: R168653eae3bd5965bcbef2cde3ba26c8dace8f23
2 files changed