tegra3-common: Update sepolicy

Use vold domain for radio initialization. IMCdownload needs permissions to
mount usbfs that is only allowed specific domains.

Change-Id: Ia851aac3e72dcb5ab1116dd1dcf8b18cbdb356b4
tegra3-common: Update camera wrapper

* Fix include path
  camera_vendor_tags.h has been moved to system/media/camera

* Fix loading the vendor module
  Module is now named camera.vendor.tegra.so to pass id check

Change-Id: I8f72d955bae9e81d3bfb8390613e9f385cfba5b5