net: thunderx: fix MAINTAINERS

The liquidio and thunder drivers have different maintainers.
Signed-off-by: NAleksey Makarov <aleksey.makarov@caviumnetworks.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

MAINTAINERS

@@ -928,7 +928,7 @@ M:	Sunil Goutham <sgoutham@cavium.com>
 M:	Robert Richter <rric@kernel.org>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Supported
-F:	drivers/net/ethernet/cavium/
+F:	drivers/net/ethernet/cavium/thunder/
 
 ARM/CIRRUS LOGIC CLPS711X ARM ARCHITECTURE
 M:	Alexander Shiyan <shc_work@mail.ru>
@@ -2543,7 +2543,6 @@ M:     Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
 L:     netdev@vger.kernel.org
 W:     http://www.cavium.com
 S:     Supported
-F:     drivers/net/ethernet/cavium/
 F:     drivers/net/ethernet/cavium/liquidio/
 
 CC2520 IEEE-802.15.4 RADIO DRIVER