soc: remove reslock usage during wakeup vote/unvote

Remove reslock usage from device wakeup vote and unvote functions.
Mutex lock 'reslock' is to used only within runtime resume
and suspend functions, to avoid race conditions between them.

Change-Id: I221b00db2e762a0803b898a62cd98db1fe3ae3fa
Signed-off-by: Vignesh Kulothungan <vigneshk@codeaurora.org>