kdump fails on iSCSI mutipath environment.

Issue

• kdump fails on iSCSI multipath environment with following messages:

[...]
             Starting Login iSCSI Target iqn.201...org.jaguar.iscsiboot:myiscsi2...
             Starting Login iSCSI Target iqn.201...org.jaguar.iscsiboot:myiscsi2...
             Starting Login iSCSI Target iqn.201...org.jaguar.iscsiboot:myiscsi2...
    [FAILED] Failed to start Login iSCSI Target ...1.org.jaguar.iscsiboot:myiscsi2.
    See 'systemctl status "iscsistart_\\x40...iboot:myiscsi2.service"' for details.
    [FAILED] Failed to start Login iSCSI Target ...1.org.jaguar.iscsiboot:myiscsi2.
    See 'systemctl status "iscsistart_\\x40...iboot:myiscsi2.service"' for details.
    [FAILED] Failed to start Login iSCSI Target ...1.org.jaguar.iscsiboot:myiscsi2.
    See 'systemctl status "iscsistart_\\x40...iboot:myiscsi2.service"' for details.
    [  138.093297] dracut-initqueue[261]: Warning: dracut-initqueue timeout - starting timeout scripts
             Stopping Open-iSCSI...
    [  OK  ] Stopped Open-iSCSI.
             Starting Open-iSCSI...
    [  OK  ] Started Open-iSCSI.
             Starting Login iSCSI Target iqn.201...org.jaguar.iscsiboot:myiscsi2...
             Starting Login iSCSI Target iqn.201...org.jaguar.iscsiboot:myiscsi2...
             Starting Login iSCSI Target iqn.201...org.jaguar.iscsiboot:myiscsi2...
    [FAILED] Failed to start Login iSCSI Target ...1.org.jaguar.iscsiboot:myiscsi2.
    See 'systemctl status "iscsistart_\\x40...iboot:myiscsi2.service"' for details.
    [FAILED] Failed to start Login iSCSI Target ...1.org.jaguar.iscsiboot:myiscsi2.
    See 'systemctl status "iscsistart_\\x40...iboot:myiscsi2.service"' for details.
    [FAILED] Failed to start Login iSCSI Target ...1.org.jaguar.iscsiboot:myiscsi2.
    See 'systemctl status "iscsistart_\\x40...iboot:myiscsi2.service"' for details.
    [  262.674355] dracut-initqueue[261]: Warning: dracut-initqueue timeout - starting timeout scripts
    ...(snip)...
    [  323.087992] dracut-initqueue[261]: Warning: dracut-initqueue timeout - starting timeout scripts
    [  323.099241] dracut-initqueue[261]: Warning: Could not boot.
    [  323.106222] dracut-initqueue[261]: Warning: /dev/disk/by-uuid/b56ff2b9-0016-4abb-8fb8-a6d1155dfb16 does not exist
    ...(snip)...
    Kdump: Executing default action systemctl reboot -f
    [  324.182714] Restarting system.
[...]