arm: tegra: USB: correct hsic regulators

arm: tegra: USB: correct hsic regulators

Correcting the devices names for hsic
regulators for dalmore. Also fixing potential
kernel crash.

Reviewed-on: http://git-master/r/133585
(cherry picked from commit 2f5cdbe744e3bbc5f31fadcdbc282a2b909056ff)

Change-Id: I5b12d9a8d71f13637cecde633e293badc2930bf6
Signed-off-by: Rakesh Bodla <rbodla@nvidia.com>
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/143084
Reviewed-by: Simone Willett <swillett@nvidia.com>
Tested-by: Simone Willett <swillett@nvidia.com>
Rebase-Id: Reeecdc01289fed398fe0c268f1b00218f78fe101