xfs: pass btree cursors to refcount btree tracepoints

xfs: pass btree cursors to refcount btree tracepoints

Source kernel commit: 8fbac2f1a0947dc45ecf13e9b5aa17b5942b4a2d

Prepare the rest of refcount btree tracepoints for use with realtime
reflink by making them take the btree cursor object as a parameter.
This will save us a lot of trouble later on.

Remove the xfs_refcount_recover_extent tracepoint since it's already
covered by other refcount tracepoints.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>