MAINTAINERS: Add decsny as ETH/MDIO collaborator

Add myself (decsny) as ethernet/mdio collaborator.

I have taken an interest in ethernet and am currently
maintaining and writing some ethernet/mdio drivers for NXP,
and would like to use the collaborator role to monitor the
zephyr activity of the ethernet/mdio subsystems.

Signed-off-by: Declan Snyder <[email protected]>

Author: decsny

MAINTAINERS.yml

@@ -1164,6 +1164,8 @@ Release Notes:
 
 "Drivers: Ethernet":
   status: odd fixes
+  collaborators:
+    - decsny
   files:
     - drivers/ethernet/
     - include/zephyr/dt-bindings/ethernet/
@@ -1389,6 +1391,8 @@ Release Notes:
 
 "Drivers: MDIO":
   status: odd fixes
+  collaborators:
+    - decsny
   files:
     - doc/hardware/peripherals/mdio.rst
     - drivers/mdio/