Add Hotplug Governor
Based on these commits:

https://github.com/gokhanmoral/siyahkernel-sgs3/commit/ba37e8fbcdc17a6dcbd1522a6dd53b68545e2bf5

https://github.com/gokhanmoral/siyahkernel-sgs3/commit/7a934866a3e0d5d622cbd757033f3482f4f67e81

https://github.com/gokhanmoral/siyahkernel-sgs3/commit/63d2419e086f803759aec0157a5e52b6e57e296e

https://github.com/gokhanmoral/siyahkernel-sgs3/commit/06d10b605c91e67d673de7c7a960d20a8dce1895

Change-Id: I1e35951941d722d7392d0ac6e07dba549d68bb58