staging: fpgaboot: Xilinx FPGA firmware download driver

This driver downloads Xilinx FPGA firmware using gpio pins.
It loads Xilinx FPGA bitstream format firmware image and
program the Xilinx FPGA using SelectMAP (parallel) mode.

Signed-off-by: Insop Song <insop.song@gainspeed.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/staging/Kconfig
Simple merge

diff --cc drivers/staging/Makefile
Simple merge

diff --cc drivers/staging/gs_fpgaboot/Kconfig
Simple merge

diff --cc drivers/staging/gs_fpgaboot/Makefile
Simple merge

diff --cc drivers/staging/gs_fpgaboot/README
Simple merge

diff --cc drivers/staging/gs_fpgaboot/TODO
Simple merge

diff --cc drivers/staging/gs_fpgaboot/gs_fpgaboot.c
Simple merge

diff --cc drivers/staging/gs_fpgaboot/gs_fpgaboot.h
Simple merge

diff --cc drivers/staging/gs_fpgaboot/io.c
Simple merge

diff --cc drivers/staging/gs_fpgaboot/io.h
Simple merge