PM / devfreq: qoslat: Update voting level definitions

Having OPP levels of 0 and 1 causes a minor error in OPP
debugfs since an OPP level of 0 causes the OPP index to be
used instead (1 in this case) which later clashes with an
actual OPP of 1. Update the qoslat OPP levels to avoid this.

Change-Id: I23c0e736c9f1bfe77a99af44ced180d488a52eeb
Signed-off-by: Amir Vajid <avajid@codeaurora.org>