net: dsa: microchip: fix the missing ksz8_r_mib_cnt

During the refactoring for the ksz8_dev_ops from ksz8795.c to
ksz_common.c, the ksz8_r_mib_cnt has been missed. So this patch adds the
missing one.

Fixes: 6ec23aa ("net: dsa: microchip: move ksz_dev_ops to ksz_common.c")
Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220718061803.4939-1-arun.ramadoss@microchip.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

drivers/net/dsa/microchip/ksz_common.c

@@ -150,6 +150,7 @@ static const struct ksz_dev_ops ksz8_dev_ops = {
 	.port_setup = ksz8_port_setup,
 	.r_phy = ksz8_r_phy,
 	.w_phy = ksz8_w_phy,
+	.r_mib_cnt = ksz8_r_mib_cnt,
 	.r_mib_pkt = ksz8_r_mib_pkt,
 	.freeze_mib = ksz8_freeze_mib,
 	.port_init_cnt = ksz8_port_init_cnt,