Set default permissions to 0664 for /etc/passwd and /etc/group
Set default permissions to 0664 for /etc/passwd and /etc/group

When updateDaemon adds the new UIDs and GIDs for apps, the default
permissions to /etc/passwd and /etc/group are not set correctly.
Fix this by setting these permissions to 0664 (-rw-rw-r--).

Resolves: LE-7873
Change-Id: I515166d0c787928423b295b294a4296989782640

legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af