TQM885D: Exchanged SDRAM timing by a more relaxed timing.

CAS-Latency=2, Write Recovery Time tWR=2
The max. supported bus frequency is 66 MHz. Therefore, changed
threshold to switch from 1:1 mode to 2:1 from 80 MHz to 66 MHz.

Signed-off-by: Martin Krause <martin.krause@tqs.de>
diff --git a/include/configs/TQM885D.h b/include/configs/TQM885D.h
index dd26d54..e0c6965 100644
--- a/include/configs/TQM885D.h
+++ b/include/configs/TQM885D.h
@@ -42,7 +42,7 @@
 #define CONFIG_8xx_OSCLK		10000000	/*  10 MHz - PLL input clock	*/
 #define CFG_8xx_CPUCLK_MIN		15000000	/*  15 MHz - CPU minimum clock	*/
 #define CFG_8xx_CPUCLK_MAX		133000000	/* 133 MHz - CPU maximum clock	*/
-#define CONFIG_8xx_CPUCLK_DEFAULT	66000000	/*  50 MHz - CPU default clock	*/
+#define CONFIG_8xx_CPUCLK_DEFAULT	66000000	/*  66 MHz - CPU default clock	*/
 						/* (it will be used if there is no	*/
 						/* 'cpuclk' variable with valid value)	*/