clkdev: const-ify connection id to clk_add_alias()

The connection id is only passed to clk_get() which is already const.
Const-ify this argument too.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

drivers/clk/clkdev.c

@@ -288,10 +288,10 @@ clkdev_alloc(struct clk *clk, const char *con_id, const char *dev_fmt, ...)
 }
 EXPORT_SYMBOL(clkdev_alloc);
 
-int clk_add_alias(const char *alias, const char *alias_dev_name, char *id,
-	struct device *dev)
+int clk_add_alias(const char *alias, const char *alias_dev_name,
+	const char *con_id, struct device *dev)
 {
-	struct clk *r = clk_get(dev, id);
+	struct clk *r = clk_get(dev, con_id);
 	struct clk_lookup *l;
 
 	if (IS_ERR(r))

include/linux/clkdev.h

@@ -39,7 +39,7 @@ void clkdev_add(struct clk_lookup *cl);
 void clkdev_drop(struct clk_lookup *cl);
 
 void clkdev_add_table(struct clk_lookup *, size_t);
-int clk_add_alias(const char *, const char *, char *, struct device *);
+int clk_add_alias(const char *, const char *, const char *, struct device *);
 
 int clk_register_clkdev(struct clk *, const char *, const char *, ...);
 int clk_register_clkdevs(struct clk *, struct clk_lookup *, size_t);