linux-wandboard

MLK-9954 arm: imx: update operating point for i.MX6DL

Update the i.MX6DL cpu operating points to comply with the latest
published datasheet. Latest i.MX6DL datasheet of Rev.4, 10/2014
updates the 396MHz setpoint's min voltage from 1.075V to 1.125V, Add a
25mV margin to cover the board IR drop, here use 1.15V for 396MHz to
match datasheet.

Signed-off-by: Bai Ping <b51503@freescale.com>
(cherry picked from commit 13c0324e8a006478c1b2045be6e84587b9857ad8)