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>
1 file changed