usb: phy: tegra: Add Quick Charge 2 support

usb: phy: tegra: Add Quick Charge 2 support

Add Quick Charge 2 charger detection support.
Charger support 5V, 9V, 12V and 20V charging.
Added the support to handle negotiation
of charging voltage.

Bug 1424733

Change-Id: I45106fbaf65eeba325b4df955ebf5c9e0d710666
Reviewed-on: http://git-master/r/361518
(cherry picked from commit cfe4a4a4268835e1f6267c4cb7a7c27d001ae14d)
Signed-off-by: Philip Rakity <prakity@nvidia.com>
Reviewed-on: http://git-master/r/363211
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Jay Cheng <jacheng@nvidia.com>
Reviewed-by: Rakesh Babu Bodla <rbodla@nvidia.com>
Reviewed-by: Venkat Moganty <vmoganty@nvidia.com>