ethernet: phy_mc_ksz8081: Don't reset in cfg link

No need to reset in cfg link, this was blocking system workqueue during
phy callbacks that call cfg link, since this happens from monitor work
handler which is in the system workqueue.

Signed-off-by: Declan Snyder <declan.snyder@nxp.com>
(cherry picked from commit e904743)

drivers/ethernet/phy/phy_microchip_ksz8081.c

@@ -329,12 +329,6 @@ static int phy_mc_ksz8081_cfg_link(const struct device *dev,
 	/* We are going to reconfigure the phy, don't need to monitor until done */
 	k_work_cancel_delayable(&data->phy_monitor_work);
 
-	/* Reset PHY */
-	ret = phy_mc_ksz8081_reset(dev);
-	if (ret) {
-		goto done;
-	}
-
 	/* DT configurations */
 	ret = phy_mc_ksz8081_static_cfg(dev);
 	if (ret) {