Revert "serial: core: Fix ifdef for serial base console functions"

This reverts commit b20172ca.

Let's roll back all of the serial core and printk console changes that
went into 6.10-rc1 as there still are problems with them that need to be
sorted out.

Link: https://lore.kernel.org/r/ZnpRozsdw6zbjqze@tlindgre-MOBL1Reported-by: Petr Mladek <pmladek@suse.com>
Reported-by: Tony Lindgren <tony@atomide.com>
Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/serial_base_bus.c

@@ -219,6 +219,8 @@ static int serial_base_add_one_prefcon(const char *match, const char *dev_name,
 	return ret;
 }
 
+#endif
+
 #ifdef __sparc__
 
 /* Handle Sparc ttya and ttyb options as done in console_setup() */
@@ -317,8 +319,6 @@ int serial_base_add_preferred_console(struct uart_driver *drv,
 	return serial_base_add_one_prefcon(port_match, drv->dev_name, port->line);
 }
 
-#endif
-
 #ifdef CONFIG_SERIAL_8250_CONSOLE
 
 /*