Update skip check for ServersTestBootFromVolume

Introduce new config option boot_from_volume in compute-feature-enabled
group which specifies if booting from volume is allowed.

Change-Id: Ieaed751b55bdfd38750ab3dd659e437eca937a0a
Related-Prod: PRODX-5741
(cherry picked from commit b61acd5aa2a3f3df48e88fd282170ad7c6f89d4a)
3 files changed