Adding support to set RSS level from ethdev config.
level-default will requests the default behavior.
level-outer will requests RSS to be performed on the outermost packet
encapsulation level.
level-inner will request RSS to be performed on the specified inner
packet encapsulation level, from outermost to innermost.
Signed-off-by: Kiran Kumar K <kirankumark@marvell.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>