MAINTAINERS: adjust file entry after renaming rzv2h-gbeth dtb

Commit d53320a ("dt-bindings: net: Rename
renesas,r9a09g057-gbeth.yaml") renames the net devicetree binding
renesas,r9a09g057-gbeth.yaml to renesas,rzv2h-gbeth.yaml, but misses to
adjust the file entry in the RENESAS RZ/V2H(P) DWMAC GBETH GLUE LAYER
DRIVER section in MAINTAINERS.

Adjust the file entry after this file renaming.

Signed-off-by: Lukas Bulwahn <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Reviewed-by: Lad Prabhakar <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

Author: bulwahn

MAINTAINERS

@@ -21178,7 +21178,7 @@ M:	Lad Prabhakar <[email protected]>
 L:	[email protected]
 L:	[email protected]
 S:	Maintained
-F:	Documentation/devicetree/bindings/net/renesas,r9a09g057-gbeth.yaml
+F:	Documentation/devicetree/bindings/net/renesas,rzv2h-gbeth.yaml
 F:	drivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c
 
 RENESAS RZ/V2H(P) USB2PHY PORT RESET DRIVER