Copy layout file of preference category from Settings.

Platform packages other than Settings may also use this layout to
be consistent with Settings.

Test: manual
bug: 62200881
Change-Id: I9e45772abac5aacfabbbafb38e287d0b523ef694
Merged-In: I9e45772abac5aacfabbbafb38e287d0b523ef694
1 file changed