PCH_GbE : Fixed the issue of collision detection

The collision detection setting was invalid.
When collision occurred, because data was not resent,
there was an issue to which a transmitting throughput falls.

This patch enables the collision detection.
Signed-off-by: NToshiharu Okada <toshiharu-linux@dsn.okisemi.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/pch_gbe/pch_gbe_main.c

@@ -43,8 +43,7 @@ const char pch_driver_version[] = DRV_VERSION;
 
 #define PCH_GBE_MAC_RGMII_CTRL_SETTING ( \
 	PCH_GBE_CHIP_TYPE_INTERNAL | \
-	PCH_GBE_RGMII_MODE_RGMII   | \
-	PCH_GBE_CRS_SEL              \
+	PCH_GBE_RGMII_MODE_RGMII     \
 	)
 
 /* Ethertype field values */