powerpc/ifc: fix invalid CSn FTIM2.TCH setting

On some platforms, CSn FTIM2.TCH is set to zero which is invalid,
an invalid hold time makes DUT timing variances, whether it works
or not on luck.

Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
diff --git a/include/configs/BSC9132QDS.h b/include/configs/BSC9132QDS.h
index 7bb5d33..49c16af 100644
--- a/include/configs/BSC9132QDS.h
+++ b/include/configs/BSC9132QDS.h
@@ -354,7 +354,7 @@
 #define CONFIG_SYS_CS2_FTIM1		(FTIM1_GPCM_TACO(0x0e) | \
 					FTIM1_GPCM_TRAD(0x1f))
 #define CONFIG_SYS_CS2_FTIM2		(FTIM2_GPCM_TCS(0x0e) | \
-					FTIM2_GPCM_TCH(0x0) | \
+					FTIM2_GPCM_TCH(0x8) | \
 					FTIM2_GPCM_TWP(0x1f))
 #define CONFIG_SYS_CS2_FTIM3		0x0
 #endif