net: fman: Add myself as a reviewer

I've read through or reworked a good portion of this driver. Add myself
as a reviewer.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Acked-by: Madalin Bucur <madalin.bucur@oss.nxp.com>
Link: https://lore.kernel.org/r/20230323145957.2999211-1-sean.anderson@seco.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

MAINTAINERS

@@ -8216,6 +8216,7 @@ F:	drivers/net/ethernet/freescale/dpaa
 
 FREESCALE QORIQ DPAA FMAN DRIVER
 M:	Madalin Bucur <madalin.bucur@nxp.com>
+R:	Sean Anderson <sean.anderson@seco.com>
 L:	netdev@vger.kernel.org
 S:	Maintained
 F:	Documentation/devicetree/bindings/net/fsl-fman.txt