MAINTAINERS: Add ethtool pse-pd to PSE NETWORK DRIVER

Add net/ethtool/pse-pd.c to PSE NETWORK DRIVER to receive emails concerning
modifications to the ethtool part.

Reviewed-by: Oleksij Rempel <[email protected]>
Signed-off-by: Kory Maincent <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

Author: kmaincent

MAINTAINERS

@@ -18407,6 +18407,7 @@ L:	[email protected]
 S:	Maintained
 F:	Documentation/devicetree/bindings/net/pse-pd/
 F:	drivers/net/pse-pd/
+F:	net/ethtool/pse-pd.c
 
 PSTORE FILESYSTEM
 M:	Kees Cook <[email protected]>