hid: sony: Set the DualShock 4 touchpad bits in the input_configured callback

Set the DualShock4 touchpad bits in the input_configured callback
so that they are registered properly for any input devices created
during hid_hw_start.

Fixes an issue where the touch axes would wrongly be mapped to axis 0 in the
joystick device.

Signed-off-by: Frank Praznik <frank.praznik@oh.rr.com>