nyan_big: Update Hynix BCTs and add Kingston 2GB BCT.

Hynix 2GB/4GB configs have been fine-tuned.
Kingston 2GB config is new, uses RAMCODE 0x6.

BUG=none
TEST=emerge-nyan_big coreboot-nyan_big OK. Flashed to my
Big 2GB system (PVT1/SKU1) and it booted OK.
BRANCH=nyan_big

Original-Change-Id: I8a23a5568ef84d5befc13623f78bce664130f314
Original-Signed-off-by: Tom Warren <twarren@nvidia.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/203305
Original-Reviewed-by: David Hendricks <dhendrix@chromium.org>
Original-Reviewed-by: Hung-Te Lin <hungte@chromium.org>
(cherry picked from commit e47d18d8cff50f46d0a14715b6750f7aa6d0da82)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: I363db37d6a63d9f5c578e68a0149259657e1ebfd
Reviewed-on: http://review.coreboot.org/8045
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
diff --git a/src/mainboard/google/nyan_big/sdram_configs.c b/src/mainboard/google/nyan_big/sdram_configs.c
index 2aaace4..748b6dc 100644
--- a/src/mainboard/google/nyan_big/sdram_configs.c
+++ b/src/mainboard/google/nyan_big/sdram_configs.c
@@ -21,27 +21,23 @@
 #include <soc/nvidia/tegra124/sdram.h>
 #include "sdram_configs.h"
 
-/*
- * Note for board bring up, we've temporarily filled SDRAM table with
- * hynix-2GB-204 configuration (except the hynix-4GB-204 entry for 0100).
- */
 static struct sdram_params sdram_configs[] = {
-#include "bct/sdram-hynix-2GB-204.inc"			/* ram_code = 0000 */
-#include "bct/sdram-hynix-2GB-204.inc"			/* ram_code = 0001 */
-#include "bct/sdram-hynix-2GB-204.inc"			/* ram_code = 0010 */
-#include "bct/sdram-hynix-2GB-204.inc"			/* ram_code = 0011 */
-#include "bct/sdram-hynix-4GB-204.inc"			/* ram_code = 0100 */
-#include "bct/sdram-hynix-2GB-204.inc"			/* ram_code = 0101 */
-#include "bct/sdram-hynix-2GB-204.inc"			/* ram_code = 0110 */
-#include "bct/sdram-hynix-2GB-204.inc"			/* ram_code = 0111 */
-#include "bct/sdram-hynix-2GB-204.inc"			/* ram_code = 1000 */
-#include "bct/sdram-hynix-2GB-204.inc"			/* ram_code = 1001 */
-#include "bct/sdram-hynix-2GB-204.inc"			/* ram_code = 1010 */
-#include "bct/sdram-hynix-2GB-204.inc"			/* ram_code = 1011 */
-#include "bct/sdram-hynix-2GB-204.inc"			/* ram_code = 1100 */
-#include "bct/sdram-hynix-2GB-204.inc"			/* ram_code = 1101 */
-#include "bct/sdram-hynix-2GB-204.inc"			/* ram_code = 1110 */
-#include "bct/sdram-hynix-2GB-204.inc"			/* ram_code = 1111 */
+#include "bct/sdram-unused.inc"				/* ram_code = 0000 */
+#include "bct/sdram-hynix-2GB-792.inc"			/* ram_code = 0001 */
+#include "bct/sdram-unused.inc"				/* ram_code = 0010 */
+#include "bct/sdram-unused.inc"				/* ram_code = 0011 */
+#include "bct/sdram-hynix-4GB-792.inc"			/* ram_code = 0100 */
+#include "bct/sdram-unused.inc"				/* ram_code = 0101 */
+#include "bct/sdram-kingston-2GB-792.inc"		/* ram_code = 0110 */
+#include "bct/sdram-unused.inc"				/* ram_code = 0111 */
+#include "bct/sdram-unused.inc"				/* ram_code = 1000 */
+#include "bct/sdram-unused.inc"				/* ram_code = 1001 */
+#include "bct/sdram-unused.inc"				/* ram_code = 1010 */
+#include "bct/sdram-unused.inc"				/* ram_code = 1011 */
+#include "bct/sdram-unused.inc"				/* ram_code = 1100 */
+#include "bct/sdram-unused.inc"				/* ram_code = 1101 */
+#include "bct/sdram-unused.inc"				/* ram_code = 1110 */
+#include "bct/sdram-unused.inc"				/* ram_code = 1111 */
 };
 
 const struct sdram_params *get_sdram_config()