Rename global array of SW stats descriptions declared as
'struct sfc_sw_xstat_descr sfc_sw_xstats[]' to
'sfc_sw_stats_descr[]' to avoid ambiguity since there is
structure declared as 'struct sfc_sw_xstats'.
Signed-off-by: Ivan Ilchenko <ivan.ilchenko@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>