amd-xgbe: use netdev_rss_key_fill() helper

Use netdev_rss_key_fill() helper, as it provides better support for some
bonding setups.
Signed-off-by: NEric Dumazet <edumazet@google.com>
Cc: Lendacky, Thomas <Thomas.Lendacky@amd.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/amd/xgbe/xgbe-main.c

@@ -338,7 +338,7 @@ static int xgbe_probe(struct platform_device *pdev)
 	}
 
 	/* Initialize RSS hash key and lookup table */
-	get_random_bytes(pdata->rss_key, sizeof(pdata->rss_key));
+	netdev_rss_key_fill(pdata->rss_key, sizeof(pdata->rss_key));
 
 	for (i = 0; i < XGBE_RSS_MAX_TABLE_SIZE; i++)
 		XGMAC_SET_BITS(pdata->rss_table[i], MAC_RSSDR, DMCH,