syscore: Use pm_pr_dbg() for syscore_{suspend,resume}()

The debug messages about what syscore suspend/resume hooks are called
are only present if you have initcall debugging enabled. Let's move
these messages to pm_pr_dbg() so that the syscore PM messages are
included along with all the other PM debugging info that can be seen
during suspend/resume debugging.

Cc: "Rafael J. Wysocki" <[e-mail]>
Signed-off-by: Stephen Boyd <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/base/syscore.c

···
 	int ret = 0;
 
 	trace_suspend_resume(TPS("syscore_suspend"), 0, true);
-	pr_debug("Checking wakeup interrupts\n");
+	pm_pr_dbg("Checking wakeup interrupts\n");
 
 	/* Return error code if there are any wakeup interrupts pending. */
 	if (pm_wakeup_pending())
···
 
 	list_for_each_entry_reverse(ops, &syscore_ops_list, node)
 		if (ops->suspend) {
-			if (initcall_debug)
-				pr_info("PM: Calling %pS\n", ops->suspend);
+			pm_pr_dbg("Calling %pS\n", ops->suspend);
 			ret = ops->suspend();
 			if (ret)
 				goto err_out;
···
 
 	list_for_each_entry(ops, &syscore_ops_list, node)
 		if (ops->resume) {
-			if (initcall_debug)
-				pr_info("PM: Calling %pS\n", ops->resume);
+			pm_pr_dbg("Calling %pS\n", ops->resume);
 			ops->resume();
 			WARN_ONCE(!irqs_disabled(),
 				"Interrupts enabled after %pS\n", ops->resume);