net/ice: fix statistics

[ upstream commit a47ef8640a677a3973de48b8075f1fcd6a0ee68e ]

When the stats_get api is called for the first time in pmd, the offset
of the stats register is not recorded. That results in all the obtained
count values being 0.

This patch adds reset statistics before dev_init returning. That avoids
some noise being counted.

Fixes: 1244338 ("net/ice: support flex Rx descriptor RxDID22")

Signed-off-by: Mingjin Ye <mingjinx.ye@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>

drivers/net/ice/ice_ethdev.c

@@ -2316,6 +2316,9 @@ ice_dev_init(struct rte_eth_dev *dev)
 
 	pf->supported_rxdid = ice_get_supported_rxdid(hw);
 
+	/* reset all stats of the device, including pf and main vsi */
+	ice_stats_reset(dev);
+
 	return 0;
 
 err_flow_init: