pinctrl: mscc: Add gpio and pinctrl for Jaguar2 SOC family

The Jaguar2 SOC family has 63 gpio pins therefore I extended mscc-common
to support new numbe of pins and remove any platform dependency from
mscc-common.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index 1039269..2881d9e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -526,6 +526,7 @@
 F:	drivers/gpio/mscc_sgpio.c
 F:	drivers/spi/mscc_bb_spi.c
 F:	include/configs/vcoreiii.h
+F:	drivers/pinctrl/mscc/
 
 MIPS JZ4780
 M:	Ezequiel Garcia <ezequiel@collabora.com>