uboot-phytec

cmd: fpga: Fix dump and all direct fpga load commands

Separate dump, load, loadb, loadp and loadbp commands to separate
functions to make it clear how they are called and what parameters they
need.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>