linux-phytec-fsl

Input: rb532_button - remove redundant dev_set_drvdata

Driver core sets the data to NULL upon release or probe
failure. Hence explicit setting is not necessary.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>