staging: et131x: Removing '_t' from ce_stats_t struct

Removing '_t' from ce_stats_t struct name and renaming et131x_adapter ce_stats member from
 'Stats' to 'stats'

Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>