tsnep: Add RX queue info for XDP support

Register xdp_rxq_info with page_pool memory model. This is needed for
XDP buffer handling.

Additionally fix error path by removing call of tsnep_phy_close() after
failed tsnep_phy_open().

Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>