Revert "G900P: AOSP: Move enable_oc command to post-init.sh"

This reverts commit c698d4057cf54318dcea0fd04b67d8846b4d54a0.

Change-Id: I166fe7502416052f9fdcf19f9807e86dfc2dae2a
G900P: AOSP: Revert readahead modifications

Change-Id: I1cb1b85c45d83bb6891d8be714ff7d4a071d5818