input: synaptics_dsx_2.6: Add support for automatic FW upgrade

Enable firmware upgrade at startup. Add devicetree node to
set the firmware name.

Change-Id: I4dbbcbf223529f1bff02b2591957040f1fc7609d
Signed-off-by: Venkata Prahlad Valluru <vvalluru@codeaurora.org>
4 files changed