Signed-off-by: Timothy Pearson <tpearson@raptorengineering.com>

Signed-off-by: Timothy Pearson <tpearson@raptorengineering.com>

Signed-off-by: Gabriel Somlo <gsomlo@gmail.com>

targets/acorn_cle_215: use new generate_litepcie_software functions and add --driver argument to generate driver.

targets/acorn_cle_215: automatically copy software from litepcie and generate headers in kernel directory.

Tested with:
./pano_logic_g2.py --uart-name=jtag_uart --build --load
./litex_jtag_uart.py --config=openocd_xc6_ft232.cfg
lxterm /dev/pts/X

Tested with:
./forest_kitten_33.py --uart-name=jtag_uart --build --load
litex/tools/litex_jtag_uart.py
lxterm /dev/pts/X

Default to Chaser mode and similar user interface than GPIOOut.