Bump copyright year to 2021. Signed-off-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Move libefx (base driver) into common driver. Prepare to add vDPA driver which will use the common driver as well. Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com> Reviewed-by: Andy Moreton <amoreton@xilinx.com>