This is probably what is catching you out: (VMware vSphere 7.0 Release Notes )
Deprecation of VMKLinux
In vSphere 7.0, VMKLinux driver compatibility has been deprecated and removed. vSphere 7.0 will not contain support for VMKLinux APIs and associated VMKLinux drivers. Custom ISO will not be able to have any VMKLinux async drivers. All drivers contained in an ISO must be native drivers. All currently supported devices which are not supported by native drivers will not function and will not be recognized during installation or upgrade. VCG will not show any devices not supported by a native driver as supported in vSphere 7.0.
If so, not a lot you can do til HP release an updated driver.