Fix warn: declaration of 'vring_rsc' shadows a previous local

[xiaoxiang781216]

 regressed by commit 03c80a13417f67f94852cf7d5cb160f1bdf8271e
    Author: Tammy Leino <tammy_leino@mentor.com>
    Date:   Mon Sep 26 08:14:35 2022 -0700
    
        handle_vdev_rsc must return error if notifyid cannot be assigned
    
        Updated handle_vdev_rsc to return error if a unique id cannot be assigned
        Signed-off-by: Tammy Leino <tammy_leino@mentor.com>

[arnopo]

Good catch! thanks!
We need to add add the -Wshadow build flag in our test environment

[edmooring]

Good catch.

[arnopo]

I also updated the v2022.10 branch, we will create a 2022.10.1 tag with a version 1.3.1 at the end of the month to fix the release