xfs: fix xfs_btree_query_range callers to initialize btree rec fully

xfs: fix xfs_btree_query_range callers to initialize btree rec fully

[ Upstream commit 75dc0345312221971903b2e28279b7e24b7dbb1b ]

Use struct initializers to ensure that the xfs_btree_irecs passed into
the query_range function are completely initialized.  No functional
changes, just closing some sloppy hygiene.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Leah Rumancik <leah.rumancik@gmail.com>
Acked-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>