There is no way that I know of to be honest. You would need to look at the F5 vCMP host via HTTPS GUI or obtain a QKVIEW from the host and review those details.
Of course, you could do SSH between host and guest or guest and host. Please see the following: https://my.f5.com/manage/s/article/K25741112. But running a TMSH command on the vCMP guest to obtain hardware info of the host may be difficult. SOMETIMES, you can look at the license though and obtain the hardware. Remember, in a vCMP setup, the license on the host is copied to the guest. So try looking at /config/bigip.license or running command tmsh show sys license. If you see the hardware model there, then grep it out.