ARM: omap4: Update sdram setting for panda rev A6

OMAP4 panda rev A6 is a 4430 es2.3 IC with an updated memory
part.

The panda rev A6 uses Elpida 2x4Gb memory and no longer uses Micron
so the timings needs to be updated

Signed-off-by: Dan Murphy <dmurphy@ti.com>
diff --git a/arch/arm/cpu/armv7/omap4/sdram_elpida.c b/arch/arm/cpu/armv7/omap4/sdram_elpida.c
index 67a7926..e4c8316 100644
--- a/arch/arm/cpu/armv7/omap4/sdram_elpida.c
+++ b/arch/arm/cpu/armv7/omap4/sdram_elpida.c
@@ -121,6 +121,8 @@
 		*regs = &emif_regs_elpida_380_mhz_1cs;
 	else if (omap4_rev == OMAP4430_ES2_0)
 		*regs = &emif_regs_elpida_200_mhz_2cs;
+	else if (omap4_rev == OMAP4430_ES2_3)
+		*regs = &emif_regs_elpida_400_mhz_1cs;
 	else if (omap4_rev < OMAP4470_ES1_0)
 		*regs = &emif_regs_elpida_400_mhz_2cs;
 	else
@@ -136,6 +138,8 @@
 
 	if (omap_rev == OMAP4430_ES1_0)
 		*dmm_lisa_regs = &lisa_map_2G_x_1_x_2;
+	else if (omap_rev == OMAP4430_ES2_3)
+		*dmm_lisa_regs = &lisa_map_2G_x_2_x_2;
 	else if (omap_rev < OMAP4460_ES1_0)
 		*dmm_lisa_regs = &lisa_map_2G_x_2_x_2;
 	else