post_code: add post code for memory error

Add a new post code POST_RAM_FAILURE, used when the Intel FSP code fails
to initialize RAM.

BUG=b:124401932
BRANCH=sarien
TEST=build coreboot for sarien and arcada platforms

Change-Id: Ibafefa0fc0b1c525f923929cc91731fbcc1e7533
Signed-off-by: Keith Short <keithshort@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32773
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
diff --git a/src/drivers/intel/fsp2_0/memory_init.c b/src/drivers/intel/fsp2_0/memory_init.c
index 449b57d..60e3310 100644
--- a/src/drivers/intel/fsp2_0/memory_init.c
+++ b/src/drivers/intel/fsp2_0/memory_init.c
@@ -316,7 +316,8 @@
 	fsp_handle_reset(status);
 	if (status != FSP_SUCCESS) {
 		printk(BIOS_CRIT, "FspMemoryInit returned 0x%08x\n", status);
-		die("FspMemoryInit returned an error!\n");
+		die_with_post_code(POST_RAM_FAILURE,
+			"FspMemoryInit returned an error!\n");
 	}
 
 	do_fsp_post_memory_init(s3wake, fsp_version);