usb: gadget: tegra: add NV charger detection

Adding the support to detect NV charger and
set current limit to withdraw as 2.0amps.

Bug 1193528

Change-Id: I5ef6c553b33dfa45bfd9e07a9ba05ddf3c75e239
Signed-off-by: Rakesh Bodla <rbodla@nvidia.com>
Reviewed-on: http://git-master/r/192055
Reviewed-by: Riham Haidar <rhaidar@nvidia.com>
Tested-by: Riham Haidar <rhaidar@nvidia.com>
6 files changed