usb: gadget: tegra:fix non-standard charger detection

usb: gadget: tegra:fix non-standard charger detection

Fixing the non standard charger type detection. Also,
fix commit messages and free pm_qos request during
driver unregistration.

Bug 1281401

Change-Id: I39da0847c10c1109fa95afe16866951848b694ab
Signed-off-by: Rakesh Bodla <rbodla@nvidia.com>
Reviewed-on: http://git-master/r/239297
(cherry picked from commit 2cebf65e6c30959ab7d144dd21b1e4b65b0e4065)
Reviewed-on: http://git-master/r/247155
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Venkat Moganty <vmoganty@nvidia.com>