There is no functional changes,
Use function arguments for SRIOV special variables which
is hardcode in those functions.

so we can share those functions in baremetal.
Reviewed-by: NMonk Liu <Monk.Liu@amd.com>
Signed-off-by: NRex Zhu <Rex.Zhu@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>