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/drivers/spi/Kconfig

@@ -164,5 +164,5 @@ config SPI_FLASH_HAS_VOLATILE_GROUP
 
 endif # SPI_FLASH
 
-config HAVE_SPI_CONSOLE_SUPPORT
+config HAVE_EM100PRO_SPI_CONSOLE_SUPPORT
 	def_bool n

src/drivers/spi/Makefile.inc

@@ -2,7 +2,7 @@
 
 subdirs-y += tpm
 
-ifeq ($(CONFIG_SPI_CONSOLE),y)
+ifeq ($(CONFIG_EM100PRO_SPI_CONSOLE),y)
 ramstage-y += spiconsole.c
 smm-y += spiconsole.c
 endif