msm: lpm-levels: Match suspend tracking across suspend and resume

When the system enters suspend, this entry is tracked by a variable. Unset
this variable on exiting suspend.

Change-Id: I35a1f2caf38940ef95ad6c9a1627ff107061f0f1
Signed-off-by: Karthik Parsha <kparsha@codeaurora.org>