* oem-azure: add hyperv daemons
This change adds hyperv daemons hv_fcopy, hv_kvp, and hv_vss to the
Azure and HyperV OEM sysexts. hv_kvp specifically is needed to submit OS version
information to the Azure hypervisor.
The daemons, tough userspace programs, are built from the kernel sources
as they are included in the Linux kernel.
As the ebuild is (somewhat) kernel specific, it should be updated when the kernel
is updated. Respective additions have been made to the kernel update GitHub actions
automation.
Signed-off-by: Thilo Fromm <thilofromm@microsoft.com>
Co-authored-by: Mathieu Tortuyaux <mtortuyaux@microsoft.com>
