MAINTAINERS: Update mlx4_en entry

Add Ido Shamay as co-maintainer for the mlx4 Ethernet driver.

Signed-off-by: Amir Vadai <[email protected]>
Signed-off-by: Or Gerlitz <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

Author: ogerlitz

MAINTAINERS

@@ -6323,6 +6323,7 @@ F:	drivers/scsi/megaraid/
 
 MELLANOX ETHERNET DRIVER (mlx4_en)
 M:	Amir Vadai <[email protected]>
+M:	Ido Shamay <[email protected]>
 L:	[email protected]
 S:	Supported
 W:	http://www.mellanox.com