Fix version display position on system info page

Current the version info position is absolute, so it may cover On
the table when there are lots of items in the table. Fix this by
making the version info relative.

Change-Id: I82cf36a6a50ff790f954aeee83ab2e4d61eadd69
Closes-bug: 1331685
Merge "Fix version display position on system info page"