Update git submodules

* Update cinder from branch 'master'
  to bb3895590cc58e238a6a9a67d8829484aded04f5
  - Merge "NFS driver: Use database format in initialize_connection"
  - NFS driver: Use database format in initialize_connection

    The `qemu_img_info` operation in initialize_connection may not be
    able to determine whether the volume format is `raw` or `qcow2`,
    when an inner qcow2 image is writen into a volume. This issue
    commonly happens when Glance is configured with Cinder/NFS as
    image store.

    This patch explicitily tells `qemu_img_info` operation to use
    the database format stored in admin_metadata `format` field instead
    of trying a autodiscover, to ensure volume metadata such as the
    virtual_size will be gathered correctly.

    Partial-Bug: #2073146
    Change-Id: I28df6ddfa4f62b440e01918958352ab186234f87
    Signed-off-by: Fernando Ferraz Silva <fesilva@redhat.com>

diff --git a/cinder b/cinder
index ffc441fe5531a27bbc72d9eacb40c3d255f70102..bb3895590cc58e238a6a9a67d8829484aded04f5 160000 (submodule)
--- a/cinder
+++ b/cinder
@@ -1 +1 @@
-Subproject commit ffc441fe5531a27bbc72d9eacb40c3d255f70102
+Subproject commit bb3895590cc58e238a6a9a67d8829484aded04f5