cbfs: Enable CBFS mcache on most chipsets

This patch flips the default of CONFIG_NO_CBFS_MCACHE so the feature is
enabled by default. Some older chipsets with insufficient SRAM/CAR space
still have it explicitly disabled. All others get the new section added
to their memlayout... 8K seems like a sane default to start with.

Change-Id: I0abd1c813aece6e78fb883f292ce6c9319545c44
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38424
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
diff --git a/src/soc/amd/common/block/cpu/noncar/memlayout_transfer_buffer.inc b/src/soc/amd/common/block/cpu/noncar/memlayout_transfer_buffer.inc
index a88e81a..d9bd096 100644
--- a/src/soc/amd/common/block/cpu/noncar/memlayout_transfer_buffer.inc
+++ b/src/soc/amd/common/block/cpu/noncar/memlayout_transfer_buffer.inc
@@ -12,6 +12,7 @@
 	ALIGN_COUNTER(64)
 	PRERAM_CBMEM_CONSOLE(., CONFIG_PRERAM_CBMEM_CONSOLE_SIZE)
  	TIMESTAMP(., TIMESTAMP_BUFFER_SIZE)
+	CBFS_MCACHE(., CONFIG_CBFS_MCACHE_SIZE)
 	FMAP_CACHE(., FMAP_SIZE)
 
 #if CONFIG(VBOOT)