video: tegra: dp: fix dp switch handling

video: tegra: dp: fix dp switch handling

skip hpd switch and audio switch registration for
eDP as they are not required for eDP. Also perform
switch related calls only for DP.

Bug 200128097

Change-Id: Ic320f4be2be92a80ba4d62fa9e7d65af2139deb5
Signed-off-by: Santosh Reddy Galma <galmar@nvidia.com>
Reviewed-on: http://git-master/r/781143
Reviewed-by: Venu Byravarasu <vbyravarasu@nvidia.com>
(cherry picked from commit b187863c5f4cc112e125f83a7ac996f2edf943be)
Reviewed-on: http://git-master/r/782806
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit