Add Shradha Shah as the sfc driver maintainer.

I will be taking over the work from Ben Hutchings.
Signed-off-by: Shradha Shah <sshah@solarflare.com>
Acked-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

MAINTAINERS

@@ -7636,7 +7636,7 @@ F:	drivers/net/ethernet/emulex/benet/
 
 SFC NETWORK DRIVER
 M:	Solarflare linux maintainers <linux-net-drivers@solarflare.com>
-M:	Ben Hutchings <bhutchings@solarflare.com>
+M:	Shradha Shah <sshah@solarflare.com>
 L:	netdev@vger.kernel.org
 S:	Supported
 F:	drivers/net/ethernet/sfc/