msm: cpr-regulator: modify quotient delta constraints

CPR quotients for svs mode and normal mode are very close
due to their voltage ranges being close now. Remove the
constraint between these two modes accordingly.

Change-Id: Ibcd95295cd22d12e8f98ea6e829a0bbb0b6fcb65
Signed-off-by: Ke Liu <keliu@codeaurora.org>