MAINTAINERS: add entry for TI ICSSG Ethernet driver

Add record for TI Industrial Communication Subsystem - Gigabit (ICSSG)
Ethernet driver.

Also add Roger and myself as maintainer.

Signed-off-by: MD Danish Anwar <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

MAINTAINERS

···
 F:	drivers/media/i2c/ds90*
 F:	include/media/i2c/ds90*
 
+TI ICSSG ETHERNET DRIVER (ICSSG)
+R:	MD Danish Anwar <[e-mail]>
+R:	Roger Quadros <[e-mail]>
+L:	[e-mail] (moderated for non-subscribers)
+L:	[e-mail]
+S:	Maintained
+F:	Documentation/devicetree/bindings/net/ti,icss*.yaml
+F:	drivers/net/ethernet/ti/icssg/*
+
 TI J721E CSI2RX DRIVER
 M:	Jai Luthra <[e-mail]>
 L:	[e-mail]