powerpc/t4rdb: Fix CPLD timing

This fixes CPLD timing from previous commit
ab06b236f76cfa42f264ee161be190b3e479298f.

Signed-off-by: Chunhe Lan <Chunhe.Lan@freescale.com>
[York Sun: This is the difference between v2 and v1 patch]
Reviewed-by: York Sun <yorksun@freescale.com>
diff --git a/include/configs/T4240RDB.h b/include/configs/T4240RDB.h
index e639e1d..48b8dc7 100644
--- a/include/configs/T4240RDB.h
+++ b/include/configs/T4240RDB.h
@@ -533,7 +533,7 @@
 #define CONFIG_SYS_CS3_FTIM1		(FTIM1_GPCM_TACO(0x0e) | \
 					FTIM1_GPCM_TRAD(0x1f))
 #define CONFIG_SYS_CS3_FTIM2		(FTIM2_GPCM_TCS(0x0e) | \
-					FTIM2_GPCM_TCH(0x0) | \
+					FTIM2_GPCM_TCH(0x8) | \
 					FTIM2_GPCM_TWP(0x1f))
 #define CONFIG_SYS_CS3_FTIM3		0x0