MAINTAINERS: net: Update reviewers for TI's Ethernet drivers

Grygorii is no longer associated with TI and messages addressed to
him bounce.

Add Siddharth, Roger and myself as reviewers.
Signed-off-by: Ravi Gunasekaran <r-gunasekaran@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

MAINTAINERS

@@ -21769,7 +21769,9 @@ F:	Documentation/devicetree/bindings/counter/ti-eqep.yaml
 F:	drivers/counter/ti-eqep.c
 
 TI ETHERNET SWITCH DRIVER (CPSW)
-R:	Grygorii Strashko <grygorii.strashko@ti.com>
+R:	Siddharth Vadapalli <s-vadapalli@ti.com>
+R:	Ravi Gunasekaran <r-gunasekaran@ti.com>
+R:	Roger Quadros <rogerq@kernel.org>
 L:	linux-omap@vger.kernel.org
 L:	netdev@vger.kernel.org
 S:	Maintained