src: Rename EM100Pro-specific SPI console Kconfig option

To avoid confusion with `flashconsole` (CONSOLE_SPI_FLASH), prefix this
option with `EM100Pro`. Looks like it is not build-tested, however.

Change-Id: I4868fa52250fbbf43e328dfd12e0e48fc58c4234
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45973
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>

src/soc/intel/baytrail/Kconfig

@@ -30,7 +30,7 @@ config CPU_SPECIFIC_OPTIONS
 	select UDELAY_TSC
 	select SOC_INTEL_COMMON
 	select INTEL_DESCRIPTOR_MODE_CAPABLE
-	select HAVE_SPI_CONSOLE_SUPPORT
+	select HAVE_EM100PRO_SPI_CONSOLE_SUPPORT
 	select INTEL_GMA_ACPI
 	select INTEL_GMA_SWSMISCI
 	select CPU_INTEL_COMMON