drivers/intel/fsp2_0: Use CBFS_MCACHE when coreboot tears down CAR

TESTED on ocp/tiogapass.

Change-Id: I30560149eeaec62af4c8a982815618be5546531c
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49877
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/drivers/intel/fsp2_0/Kconfig

@@ -113,7 +113,7 @@ config FSP_S_FILE
 config FSP_CAR
 	bool
 	default n
-	select NO_CBFS_MCACHE
+	select NO_CBFS_MCACHE if !NO_FSP_TEMP_RAM_EXIT
 	help
 	  Use FSP APIs to initialize & Tear Down the Cache-As-Ram