printk: Fix a typo in comment "interator"->"iterator"

There is a typo in comment, fix it.

Link: https://lore.kernel.org/r/20200418113536.7573-1-ethp@qq.com
Signed-off-by: Ethon Paul <ethp@qq.com>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
1 file changed