video: tegra: dc: hdmi: calling tegra_hotplug_signal to queue deferred work

video: tegra: dc: hdmi: calling tegra_hotplug_signal to queue deferred work

Call tegra_hotplug_signal to queue deferred work after a delay of 30ms and call gpio_get_value
in tegra_dc_hpd

bug 1310096
bug 1298680

Change-Id: Iab37af3258429b1e281705eb5b077be31b53b07f
Signed-off-by: sharath sarangpur <ssarangpur@nvidia.com>
Reviewed-on: http://git-master/r/241633
GVS: Gerrit_Virtual_Submit
Reviewed-by: Jon Mayo <jmayo@nvidia.com>
Reviewed-by: Anshul Jain (SW) <anshulj@nvidia.com>
Reviewed-on: http://git-master/r/243635
Reviewed-by: Matt Wagner <mwagner@nvidia.com>