Dont allow ACTDEAD to USER change on low battery

If battery level is too low we should not allow state change from ACTDEAD to USER because phone will anyhow shutdown as soon as we get into USER state.
Shutdown and bootup takes lots of power so now the minimum level is defined as high as 5. Later we can support configurable levels. Now we go with hard-coded level, but what would be correct level? Is 5 too high?


Signed-off-by: Pekka Lundstrom <pekka.lundstrom@jollamobile.com>