[PATCH] serial: samsung: only use earlycon for console

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A configuration that enables earlycon but not the core console
code causes a link error:

  drivers/built-in.o: In function `setup_earlycon':
  drivers/tty/serial/earlycon.c:70: undefined reference to `uart_parse_earlycon'

That error can be triggered by the newly added samsung earlycon support,
which is missing a 'select' statement.

As suggested by Peter Hurley, solves the problem by moving the
'select SERIAL_EARLYCON' statement to the samsung console driver
option, as it is done by all other console drivers.

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Fixes: b94ba0328d3b3 ("serial: samsung: Add support for early console")

diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index 43b61f8e3e74..9adfd0997865 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -241,7 +241,6 @@ config SERIAL_SAMSUNG
 	tristate "Samsung SoC serial support"
 	depends on PLAT_SAMSUNG || ARCH_EXYNOS
 	select SERIAL_CORE
-	select SERIAL_EARLYCON
 	help
 	  Support for the on-chip UARTs on the Samsung S3C24XX series CPUs,
 	  providing /dev/ttySAC0, 1 and 2 (note, some machines may not
@@ -277,6 +276,7 @@ config SERIAL_SAMSUNG_CONSOLE
 	bool "Support for console on Samsung SoC serial port"
 	depends on SERIAL_SAMSUNG=y
 	select SERIAL_CORE_CONSOLE
+	select SERIAL_EARLYCON
 	help
 	  Allow selection of the S3C24XX on-board serial ports for use as
 	  an virtual console.

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