Use new system agent binaries

Change-Id: I716564c4ea3b8e298cdeb82dc68e68474ed595cc
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/1879
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
diff --git a/src/northbridge/intel/sandybridge/Kconfig b/src/northbridge/intel/sandybridge/Kconfig
index 574a599..7ab8cc0 100644
--- a/src/northbridge/intel/sandybridge/Kconfig
+++ b/src/northbridge/intel/sandybridge/Kconfig
@@ -118,7 +118,8 @@
 config MRC_FILE
 	string "Intel System Agent path and filename"
 	depends on HAVE_MRC
-	default "mrc.bin"
+	default "systemagent-ivybridge.bin" if NORTHBRIDGE_INTEL_IVYBRIDGE
+	default "systemagent-sandybridge.bin" if NORTHBRIDGE_INTEL_SANDYBRIDGE
 	help
 	  The path and filename of the file to use as System Agent
 	  binary.