configs: Rename UART_DEBUG to INTEL_LPSS_UART_FOR_CONSOLE

This follows commit a96e66a76f which did the rename across the tree
except here. Since Kconfig is going to become more strict about unknown
symbols, fix it.

Change-Id: I3b855085d4be13622e8f38ff651d576e719b682c
Signed-off-by: Patrick Georgi <patrick@coreboot.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79256
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>

configs/config.google_meep_cros

@@ -33,5 +33,5 @@ CONFIG_CONSOLE_SERIAL=y
 CONFIG_CONSOLE_SERIAL_115200=y
 # CONFIG_DRIVERS_UART_8250IO is not set
 # GLK specific setting to auto select all the correct settings.
-CONFIG_UART_DEBUG=y
+CONFIG_INTEL_LPSS_UART_FOR_CONSOLE=y
 CONFIG_NO_BOOTBLOCK_CONSOLE=y