linux-phytec-ti

Input: tsc2007 - add poll_period parameter to platform data

This new parameter allows the polling frequency to be configured while
keeping the default of once every millisecond.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>