PMIC chip integrated eUSB2 repeater needs 3 power supplesy:3v, 1.2v,
and 1.8v. 1.2v power supply is always on and it is not votable
through software. Hence remove usage of 1.2v power supply, and add
1.8v power supply related usage.
Change-Id: I3417fb8b3fb98daadd101e39a034141f11262aa8