Bring back squisher as an optional part of the build

Some devices could benefit from the size reduction from running
squisher, so bring it back as an optional part of the build process.

Change-Id: I288f694fd1bf26782e05dcfa797a0569d9fdf9cb
OptiCharger Everything

* This will shrink the size of Zip files and help with Ram Usage.

Signed-off-by: Almite <almite@hotmail.com>