pinctrl: Rename pinctrl_utils_dt_free_map to pinctrl_utils_free_map

Rename pinctrl_utils_dt_free_map to pinctrl_utils_free_map, since
it does not depend on device tree despite the current name. This
will enforce a consistent naming in pinctr-utils.c and will make
it clear it can be called from outside device tree (e.g. from
ACPI handling code).

Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/pinctrl/pinctrl-amd.c b/drivers/pinctrl/pinctrl-amd.c
index cc44ae8..b0e2ec0 100644
--- a/drivers/pinctrl/pinctrl-amd.c
+++ b/drivers/pinctrl/pinctrl-amd.c
@@ -580,7 +580,7 @@
 	.get_group_pins		= amd_get_group_pins,
 #ifdef CONFIG_OF
 	.dt_node_to_map		= pinconf_generic_dt_node_to_map_group,
-	.dt_free_map		= pinctrl_utils_dt_free_map,
+	.dt_free_map		= pinctrl_utils_free_map,
 #endif
 };