Upgrade from VCF 5.0/ 5.0.0.1 with async patch of VxRail 8.0.110 to VCF 5.1.0.0 will not show VxRail 8.0.200 bundle available for upgrade.
Navigate to SDDC manager > Bundle Management. Select "View Details" for VxRail 8.0.200 bundle and copy the bundle id.
Run bundle cleanup for 8.0.200 using below command:
/usr/bin/python /opt/vmware/vcf/lcm/lcm-app/bin/bundle_cleanup.py VXRAIL8-0-200-28314729D1JM1_VxRail-8-0-200-Composite-Upgrade-Slim-Package-for-7-0-x-zip
Updated partner bundle metadata json will now be auto polled shortly after cleanup.