msm: board-8960: Increase LDO 25 voltage request from 1.225 V to 1.25 V

Hardware characterization has shown that memory operates better
when its supply voltage (provided by LDO 25) is increased to
1.25 V.  Therefore, increase the voltage constraints for LDO 25
so that 1.25 V is requested.  This also requires modifying the
voltages requested by the other consumers of LDO 25.

Change-Id: I09c52baaf41c5e00fee0a33f4e789e0aef6df572
CRs-Fixed: 366206
Signed-off-by: David Collins <collinsd@codeaurora.org>