Add and fix hyperv modules test

[kanchansenlaskar]

This PR contains the changes:

1. Addition of other hyperv modules e.g. (hv_vmbus hv_storvsc hv_utils hv_balloon hid_hyperv hyperv_keyboard hyperv_fb)
2. Also since the test is about reloading the modules, only looking for non-built in modules is not enough, hence added a small change to look specifically for reloadable modules in the config file.
3. Running separate shell script with nohup and handling the scenarios where the ssh disconnection may be encountered

[squirrelsc]

@LiliDeng LGTM