driver core: fw_devlink: Don't warn about sync_state() pending

Due to the wider deployment of the ->sync_state() support, for PM domains
for example, we are receiving reports about the sync_state() pending
message that is being logged in fw_devlink_dev_sync_state(). In particular
as it's printed at the warning level, which is questionable.

Even if it certainly is useful to know that the ->sync_state() condition
could not be met, there may be nothing wrong with it. For example, a driver
may be built as module and are still waiting to be initialized/probed. For
this reason let's move to the info level for now.

Reported-by: Geert Uytterhoeven <[e-mail]>
Reported-by: Sebin Francis <[e-mail]>
Reported-by: Diederik de Haas <[e-mail]>
Reported-by: Jon Hunter <[e-mail]>
Reviewed-by: Tomi Valkeinen <[e-mail]>
Signed-off-by: Ulf Hansson <[e-mail]>
Reviewed-by: Dhruva Gole <[e-mail]>
Reviewed-by: Sebastian Reichel <[e-mail]>
Reviewed-by: Kevin Hilman <[e-mail]>
Acked-by: Saravana Kannan <[e-mail]>
Reviewed-by: Sebin Francis <[e-mail]>
Tested-by: Sebin Francis <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/base/core.c

···
 		return 0;
 
 	if (fw_devlink_sync_state == FW_DEVLINK_SYNC_STATE_STRICT) {
-		dev_warn(sup, "sync_state() pending due to %s\n",
+		dev_info(sup, "sync_state() pending due to %s\n",
 			 dev_name(link->consumer));
 		return 0;
 	}