sandybridge/raminit: Do not die() if timC calibration fails

We can successfully bring up systems if timC calibration fails, as has
been demonstrated with google/butterfly. As a result, do not die(),
but simply print a message and continue in the hope that we may be
able to boot.

Change-Id: I49ec80324f63b2d45ae8f61c5c26454acb9c232f
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/8475
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
diff --git a/src/northbridge/intel/sandybridge/raminit_native.c b/src/northbridge/intel/sandybridge/raminit_native.c
index e892caa..764ec38 100644
--- a/src/northbridge/intel/sandybridge/raminit_native.c
+++ b/src/northbridge/intel/sandybridge/raminit_native.c
@@ -2060,7 +2060,7 @@
 		    get_longest_zero_run(statistics[lane], MAX_TIMC + 1);
 		ctrl->timings[channel][slotrank].lanes[lane].timC = rn.middle;
 		if (rn.all)
-			die("timC discovery failed");
+			printk(BIOS_CRIT, "timC discovery failed");
 		printram("Cval: %d, %d, %d, %x\n", channel, slotrank,
 		       lane, ctrl->timings[channel][slotrank].lanes[lane].timC);
 	}