pinctrl: nsp: add pinmux driver support for Broadcom NSP SoC

This adds the initial support of the Broadcom NSP pinmux driver.

Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com>
Reviewed-by: Ray Jui <rjui@broadcom.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/pinctrl/bcm/Makefile b/drivers/pinctrl/bcm/Makefile
index 3861a1c..2a65111 100644
--- a/drivers/pinctrl/bcm/Makefile
+++ b/drivers/pinctrl/bcm/Makefile
@@ -6,3 +6,4 @@
 obj-$(CONFIG_PINCTRL_CYGNUS_MUX)	+= pinctrl-cygnus-mux.o
 obj-$(CONFIG_PINCTRL_NSP_GPIO)		+= pinctrl-nsp-gpio.o
 obj-$(CONFIG_PINCTRL_NS2_MUX)		+= pinctrl-ns2-mux.o
+obj-$(CONFIG_PINCTRL_NSP_MUX)		+= pinctrl-nsp-mux.o