MAINTAINERS: update maintainers for Microchip LAN78xx

Woojung Huh seems to have only replied to the list 35 times
in the last 5 years, and didn't provide any reviews in 3 years.
The LAN78XX driver has seen quite a bit of activity lately.

gitdm missingmaints says:

Subsystem USB LAN78XX ETHERNET DRIVER
  Changes 35 / 91 (38%)
  (No activity)
  Top reviewers:
    [23]: [email protected]
    [3]: [email protected]
    [2]: [email protected]
  INACTIVE MAINTAINER Woojung Huh <[email protected]>

Move Woojung to CREDITS and add new maintainers who are more
likely to review LAN78xx patches.

Acked-by: Woojung Huh <[email protected]>
Acked-by: Rengarajan Sundararajan <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

Author: kuba-moo

CREDITS

@@ -1816,6 +1816,10 @@ D: Author/maintainer of most DRM drivers (especially ATI, MGA)
 D: Core DRM templates, general DRM and 3D-related hacking
 S: No fixed address
 
+N: Woojung Huh
+E: [email protected]
+D: Microchip LAN78XX USB Ethernet driver
+
 N: Kenn Humborg
 E: [email protected]
 D: Mods to loop device to support sparse backing files

MAINTAINERS

@@ -24252,7 +24252,8 @@ F:	Documentation/devicetree/bindings/usb/nxp,isp1760.yaml
 F:	drivers/usb/isp1760/*
 
 USB LAN78XX ETHERNET DRIVER
-M:	Woojung Huh <[email protected]>
+M:	Thangaraj Samynathan <[email protected]>
+M:	Rengarajan Sundararajan <[email protected]>
 M:	[email protected]
 L:	[email protected]
 S:	Maintained