Bluetooth: MGMT: set_mesh: update LE scan interval and window

According to the message of commit b338d917 ("Bluetooth: Implement
support for Mesh"), MGMT_OP_SET_MESH_RECEIVER should set the passive scan
parameters.  Currently the scan interval and window parameters are
silently ignored, although user space (bluetooth-meshd) expects that
they can be used [1]

[1] https://git.kernel.org/pub/scm/bluetooth/bluez.git/tree/mesh/mesh-io-mgmt.c#n344


Fixes: b338d917 ("Bluetooth: Implement support for Mesh")
Cc: stable@vger.kernel.org
Signed-off-by: Christian Eggers <ceggers@arri.de>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>