[2/2] OmniGears: Lockscreen blur enhancements

Adds an option to set blur intensity

Base: https://gerrit.omnirom.org/#/c/5705/

Change-Id: Ife0941c00ebf1cbfc5804a059d337cf4e8528666
Merge pull request #9 from omnirom/android-4.4

[2/2] OmniGears: Lockscreen blur enhancements