pinctrl: armada-37xx: add static to local data

Detected by sparse.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/mvebu/pinctrl-armada-37xx.c

@@ -190,14 +190,14 @@ static struct armada_37xx_pin_group armada_37xx_sb_groups[] = {
 		       "mii", "mii_err"),
 };
 
-const struct armada_37xx_pin_data armada_37xx_pin_nb = {
+static const struct armada_37xx_pin_data armada_37xx_pin_nb = {
 	.nr_pins = 36,
 	.name = "GPIO1",
 	.groups = armada_37xx_nb_groups,
 	.ngroups = ARRAY_SIZE(armada_37xx_nb_groups),
 };
 
-const struct armada_37xx_pin_data armada_37xx_pin_sb = {
+static const struct armada_37xx_pin_data armada_37xx_pin_sb = {
 	.nr_pins = 30,
 	.name = "GPIO2",
 	.groups = armada_37xx_sb_groups,