cifs: report reconnect error to userspace

cifs: report reconnect error to userspace

Bug 2194577

Change-Id: Iec3d9dde7ad3abb1daa80df0eb9f84e5474722e8
Signed-off-by: Robert Shih <rshih@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1761297
Reviewed-on: https://git-master.nvidia.com/r/1851180
Reviewed-on: https://git-master.nvidia.com/r/1934988
GVS: Gerrit_Virtual_Submit
Reviewed-by: Shawn Heo <sheo@nvidia.com>
Tested-by: Shawn Heo <sheo@nvidia.com>
Reviewed-by: Vinayak Pane <vpane@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>