pinctrl: Demote subsystem banner message

There is no reason to print any "hello world" from pin control
unless (maybe) if we are debugging.

Drop the banner.

Reviewed-by: Bartosz Golaszewski <[e-mail]>
Signed-off-by: Linus Walleij <[e-mail]>

drivers/pinctrl/core.c

···
 
 static int __init pinctrl_init(void)
 {
-	pr_info("initialized pinctrl subsystem\n");
+	pr_debug("initialized pinctrl subsystem\n");
 	pinctrl_init_debugfs();
 	return 0;
 }