Remove obsolete EARLY_CONSOLE usage

The EARLY_CONSOLE Kconfig symbol was removed in
commit 48713a1b - console: Drop EARLY_CONSOLE option

The arm64 and mips directories don't even have early_console.c
to include.

Change-Id: Idc60ffb2bac2b180f4fdd0adf5c411e1f692a846
Signed-off-by: Martin Roth <gaumless@gmail.com>
Reviewed-on: http://review.coreboot.org/10615
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

src/mainboard/emulation/qemu-armv7/Kconfig

@@ -26,7 +26,6 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select CPU_ARMLTD_CORTEX_A9
 	select DRIVERS_UART_PL011
 	select BOOTBLOCK_CONSOLE
-	select EARLY_CONSOLE
 	select CONSOLE_SERIAL
 	select ARM_BOOTBLOCK_ARMV7
 	select ARM_ROMSTAGE_ARMV7