Remove some dist targets from PDK builds

Remove apps.zip and package_stats.txt from the PDK build, they
fail because no apps or jar files are built.

Remove emulator.zip, the emulator is not built.

Also, put recovery.img back into the PDK build, it is needed by
the img.zip target, and will be necessary for fusion builds.

Change-Id: Ie314e0432881d3ee4f1ef3eec5a98be6b8581572