Revert "msm8226-common: Don't activate ZRAM"

This reverts commit d86adc74dba60229d3dba001312e1e15f3a3a697.

Change-Id: I2121d3a23ab367fc9e919d8b1deca284b1960d71
msm8226-common: Fix paths in extract script

Change-Id: I1a000c1fa243705b3ec498e97ff5bc4465f00808