Added a new driver for Xilinx XPS PS2 IP. This driver is
a flat driver to better match the Linux driver pattern.
Signed-off-by: NSadanand <sadanan@xilinx.com>
Signed-off-by: NJohn Linn <john.linn@xilinx.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>