p1: add lvm support [1/3]

Depends on:
2: https://gerrit.omnirom.org/#/c/7250/
3: https://gerrit.omnirom.org/#/c/7252/

This reverts commit 28cd82e41e197a2abb6ac96c049b45c527ecc052.

Change-Id: Id9deb8ff45cf6e8dbfb9208c1c5f3b57ed3236a4
Merge "p1: add lvm support [1/3]" into android-4.4