msm8226-common: Remove usage of logwrapper

Change-Id: I67912c2c685ef552ffe4a41238cadb56007dc0bf
msm8226-common: Restore /persist context as well

Change-Id: I8b507b0a9b93c888c96623bb43ae1ef9eb15a2a8
msm8226-common: Move mount_pds to /system/bin

Change-Id: Ied73810ae632407e30ccbaec9b3e8ac1a09bf38b