The ivshmem tests are all failing in the CI for MSHV because Cloud
Hypervisor is built without the mshv feature.
Error: Cloud Hypervisor exited with the following chain of errors:
0: Failed to open hypervisor interface (is hypervisor interface
available?)
1: Failed to create the hypervisor
2: no supported hypervisor
Modify the build command to include the mshv feature.
Signed-off-by: Anirudh Rayabharam <anrayabh@microsoft.com>