of: Make of_get_phy_mode() return int i.s.o. const int

include/linux/of_net.h:16: warning: type qualifiers ignored on function return type

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
diff --git a/drivers/of/of_net.c b/drivers/of/of_net.c
index ea174c8..8f9be2e 100644
--- a/drivers/of/of_net.c
+++ b/drivers/of/of_net.c
@@ -39,7 +39,7 @@
  * The function gets phy interface string from property 'phy-mode',
  * and return its index in phy_modes table, or errno in error case.
  */
-const int of_get_phy_mode(struct device_node *np)
+int of_get_phy_mode(struct device_node *np)
 {
 	const char *pm;
 	int err, i;