FROMLIST: dm-verity: skip verity_handle_error on I/O errors

If there is an I/O error and FEC correction fails, return
an error instead of calling verity_handle_error().

Suggested-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Akilesh Kailash <akailash@google.com&gt;.>

Bug: 197830746
Change-Id: Ie0f79b4dced50ce35904f8e63216d8d251f6caa8
Patch-mainline: lkml @ 	Mon, 13 Sep 2021 09:26
Signed-off-by: Sachin Grover <sgrover@codeaurora.org>