libpayload: store boot media information in sysinfo

Write boot media information in sysinfo, if it exists. This allows picking the
right CBFS for further files in case there are several.

Change-Id: I75a8ee6b93f349b9f2fab1e82826aba675949c0a
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/10869
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
diff --git a/payloads/libpayload/include/sysinfo.h b/payloads/libpayload/include/sysinfo.h
index c407c3d..b97ae14 100644
--- a/payloads/libpayload/include/sysinfo.h
+++ b/payloads/libpayload/include/sysinfo.h
@@ -124,6 +124,10 @@
 		uint32_t sector_size;
 		uint32_t erase_cmd;
 	} spi_flash;
+	uint64_t fmap_offset;
+	uint64_t cbfs_offset;
+	uint64_t cbfs_size;
+	uint64_t boot_media_size;
 	uint64_t mtc_start;
 	uint32_t mtc_size;
 };