net: mscc: ocelot: Update DTS for Ocelot pcb120.

Update device tree for ocelot to add support for ocelot pcb120.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index 09f31cd..6035623 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -577,6 +577,7 @@
 F:	drivers/gpio/mscc_sgpio.c
 F:	drivers/spi/mscc_bb_spi.c
 F:	include/configs/vcoreiii.h
+F:	include/dt-bindings/mscc/
 F:	drivers/pinctrl/mscc/
 F:	drivers/net/mscc_eswitch/