serial: 8250_ingenic: drop #if conditional surrounding earlycon code

The #if defined(CONFIG_SERIAL_EARLYCON) && !defined(MODULE)
conditional has been added to the OF_EARLYCON_DECLARE() define.

The same conditional can be dropped from 8250_ingenic.c because
the unused symbols will be marked as __maybe_unsed.
Also, the Kconfig dependency can become much simpler.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/8250/8250_ingenic.c

@@ -48,7 +48,6 @@ static const struct of_device_id of_match[];
 #define UART_MCR_MDCE	BIT(7)
 #define UART_MCR_FCM	BIT(6)
 
-#if defined(CONFIG_SERIAL_EARLYCON) && !defined(MODULE)
 static struct earlycon_device *early_device;
 
 static uint8_t __init early_in(struct uart_port *port, int offset)
@@ -141,7 +140,6 @@ OF_EARLYCON_DECLARE(jz4775_uart, "ingenic,jz4775-uart",
 EARLYCON_DECLARE(jz4780_uart, ingenic_early_console_setup);
 OF_EARLYCON_DECLARE(jz4780_uart, "ingenic,jz4780-uart",
 		    ingenic_early_console_setup);
-#endif /* CONFIG_SERIAL_EARLYCON */
 
 static void ingenic_uart_serial_out(struct uart_port *p, int offset, int value)
 {

drivers/tty/serial/8250/Kconfig

@@ -397,7 +397,7 @@ config SERIAL_8250_UNIPHIER
 config SERIAL_8250_INGENIC
 	tristate "Support for Ingenic SoC serial ports"
 	depends on SERIAL_8250
-	depends on (OF_FLATTREE && SERIAL_8250_CONSOLE) || !SERIAL_EARLYCON
+	depends on OF_FLATTREE
 	depends on MIPS || COMPILE_TEST
 	help
 	  If you have a system using an Ingenic SoC and wish to make use of