Do not wake screen with volume keys when no lockscreen active

If lockscreen is completelly disabled or timeouts are used
it was possible to wake the phone with volume keys while
there was no lockscreen, even if the option
"wake wit volume" in CMParts was disabled.

This was due to the fact, that the flag WAKE is enabled on
most phones for volume keys in the file <phone>-keylout.kl

This patch fixes that and checks the option.

Change-Id: Ie7c3f84b2db268a1d111f76fa42b317144e695b8