socrates: fix crash after relocation

Currently U-Boot crashes after relocation to RAM.
Changing the CPO value of the DDR SDRAM TIMING_CFG_2
register to READ_LAT + 1 (to the value it was before
conversion of socrates to new DDR code) fixes the
problem.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
diff --git a/board/socrates/ddr.c b/board/socrates/ddr.c
index bbb5ee2..62a5951 100644
--- a/board/socrates/ddr.c
+++ b/board/socrates/ddr.c
@@ -57,7 +57,7 @@
 	 *	- frequency
 	 *	- ddr1 vs. ddr2
 	 */
-	popts->cpo_override = 10;
+	popts->cpo_override = 0;
 
 	/*
 	 * Factors to consider for write data delay: