Grant Installer application access to WRT I18N DB

Grant Installer application access to WRT I18N DB

[Issue#]   WGL-560, WGL-563
[Problem]  Installation of test widgets included in above issues fail
[Cause]    Installer application does not have access to WRT I18N DB
[Solution] Since there is no way to add appropriate permissions to
Installer application from WRT and having in mind that WRT I18N DB does
not contain any sensitive data it has been decided to grant access to
this DB to the whole "world" (by setting "*" SMACK label on this DB).

[Verification]
1. Build repository.
2. Install widgets from WGL-560 using wrt-installer launched directly in
command line.

Change-Id: I214f83aa2bcae8de5cba48953d0d0237a54d60e8