regmap: Allow regmap_get_device() to be used by modules

Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 5ba0263..78f43fb 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -1084,6 +1084,7 @@
 {
 	return map->dev;
 }
+EXPORT_SYMBOL_GPL(regmap_get_device);
 
 static int _regmap_select_page(struct regmap *map, unsigned int *reg,
 			       struct regmap_range_node *range,