pinctrl: Export some needed symbols at module load time

Export the pin_get_name()/pinconf_generic_parse_dt_config() symbols needed
by the Spreadtrum pinctrl driver when building it as a module.
Signed-off-by: Baolin Wang <baolin.wang7@gmail.com>
Link: https://lore.kernel.org/r/f4e7e20afacb23e6fa7a6b33ea4319b2b3492840.1582776447.git.baolin.wang7@gmail.comSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/core.c

@@ -176,6 +176,7 @@ const char *pin_get_name(struct pinctrl_dev *pctldev, const unsigned pin)
 
 	return desc->name;
 }
+EXPORT_SYMBOL_GPL(pin_get_name);
 
 /* Deletes a range of pin descriptors */
 static void pinctrl_free_pindescs(struct pinctrl_dev *pctldev,

drivers/pinctrl/pinconf-generic.c

@@ -286,6 +286,7 @@ int pinconf_generic_parse_dt_config(struct device_node *np,
 	kfree(cfg);
 	return ret;
 }
+EXPORT_SYMBOL_GPL(pinconf_generic_parse_dt_config);
 
 int pinconf_generic_dt_subnode_to_map(struct pinctrl_dev *pctldev,
 		struct device_node *np, struct pinctrl_map **map,