mpc85xx/t2080: Fix parsing DDR ratio for new revision

T2080 rev 1.1 changes MEM_RAT in RCW, which requires new parsing for ratio,
the same way as T4240 rev 2.0.

Signed-off-by: York Sun <yorksun@freescale.com>
CC: Shengzhou Liu <Shengzhou.Liu@freescale.com>
1 file changed