Fix smack deny issue while updating pkg

Fix smack deny issue while updating pkg

- When certain pkg is updating and some other application
  tries to access its shared/res directory, it may cause
  smack deny if file has copied but security registration is
  not performed.
- This patch preserves shared and shared/res directory to
  preserve its smack label and this will transmuted into
  files and directories which will be copied into it.

Change-Id: I7eed21df0387ad969d6b8a13f0c269e1022db8e2
Signed-off-by: Junghyun Yeon <jungh.yeon@samsung.com>