envsetup: dopush: set file permissions on files pushed to /data too

* If pushing to /data, transfer old file owner, group, permissions to
  pushed files, then restorecon

Signed-off-by: Chirayu Desai <cdesai@cyanogenmod.org>
Change-Id: Ibf2945adee457a680a288f2bdfba3d2e29ba25a1