ARM: tegra: use build-in device properties with rfkill_gpio

Pass the rfkill name and type to the device with properties
instead of driver specific platform data.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
CC: Alexandre Courbot <gnurou@gmail.com>
CC: Thierry Reding <thierry.reding@gmail.com>
CC: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Thierry Reding <treding@nvidia.com>
Tested-by: Marc Dietrich <marvin24@gmx.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>