Add multi-host support for LogServices collection

Add support for multi-host to get a valid collection upon requesting

/redfish/v1/Systems/{computerSystemId}/LogServices/

redfish resource.

All multi-host supported redfish URIs can be found in this listing:
https://gerrit.openbmc.org/c/openbmc/bmcweb/+/76118

Tested:
Redfish service validation succeeded on romulus and yosemite4. In
addition the route has been curled to see if the correct collection is
returned.

Change-Id: Ic01cdfb18e1c219bf1fc2e0343a45d8ca5d4fa0a
Signed-off-by: Oliver Brewka <oliver.brewka@9elements.com>

Author: mox669