From privacy perspective it is a bit concerning, that an Android system with Google Play Services and Internet access system can collect CPU and kernel information.
(Especially Play Services being a system app with root access, if you need them.)
I would agree with Spoofing the CPU name :
Thanks for the hint to configure a generic kernel! Still I think this hardware information (in combination with other identifiers like IP) have high fingerprinting potential, especially if you are one of the biggest data collectors in this world. The hypervisor seems to be the only component that effectively can spoof CPUID, hence it is a bit unfortunate Xen does not provide possibility for users to decide them selves.