For some time now the build system has included all the max image
sizes in a file in the META directory. Use these instead of needing
to parse the BoardConfig.mk file for the device at the time of
building an image or OTA package.
In python 2.5 and earlier, ZipFile.writestr(filename, data) results in
the file being added to the archive with permissions 000. (See
http://svn.python.org/view?view=rev&revision=65235.) Work around this
by creating a ZipInfo object and setting the permissions explicitly.
building images & OTA packages out of vendor/google.
No device code is touched by this change.
Original author: dougz
Merged from: //branches/cupcake/...
Automated import of CL 144270