drivers/intel/fsp2_0: Verify HOBs returned by FspMemoryInit

Verify that FSP is properly returning:
* HOB list pointer
* FSP_BOOTLOADER_TOLUM_HOB
* FSP_RESERVED_MEMORY_RESOURCE_HOB

TEST=Build and run on Galileo Gen2

Change-Id: I23005d10f7f3ccf06a2e29dab5fa11c7ed79f187
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/15850
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
diff --git a/src/drivers/intel/fsp2_0/memory_init.c b/src/drivers/intel/fsp2_0/memory_init.c
index e55b9e5..1e14df2 100644
--- a/src/drivers/intel/fsp2_0/memory_init.c
+++ b/src/drivers/intel/fsp2_0/memory_init.c
@@ -68,7 +68,8 @@
 	struct range_entry fsp_mem;
 	struct romstage_handoff *handoff;
 
-	fsp_find_reserved_memory(&fsp_mem);
+	if (fsp_find_reserved_memory(&fsp_mem))
+		die("Failed to find FSP_RESERVED_MEMORY_RESOURCE_HOB!\n");
 
 	/* initialize cbmem by adding FSP reserved memory first thing */
 	if (!s3wake) {