Change tools:list_item to listitem. [DO NOT MERGE]

The listitem is already in use for ListView. Reuse the same attribute
for RecyclerView rather than creating a new one.

Change-Id: I82aabe7d04fbe3e61645bc427a81c14c454d03c5
(cherry picked from commit 111dc04a28f0181bf429e5ded9024d3fdff7be50)
1 file changed