fix typos "precidence" -> "precedence" in comments

This patch was generated by

	git grep -E -i -l 'precidence' | xargs -r perl -p -i -e 's/precidence/precedence/'

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

arch/sh/kernel/cpu/clock.c

@@ -404,7 +404,7 @@ EXPORT_SYMBOL_GPL(clk_round_rate);
  *  If an entry has a device ID, it must match
  *  If an entry has a connection ID, it must match
  * Then we take the most specific entry - with the following
- * order of precidence: dev+con > dev only > con only.
+ * order of precedence: dev+con > dev only > con only.
  */
 static struct clk *clk_find(const char *dev_id, const char *con_id)
 {