[LU-12375] lnet should start after opa service

• Type: Bug
• Resolution: Fixed
• Priority: Major
• Fix Version/s: Lustre 2.13.0, Lustre 2.12.3
• Affects Version/s: Lustre 2.13.0, Lustre 2.12.2, Lustre 2.10.8
• Assignee: Nathaniel Clark
• Reporter: Nathaniel Clark

Description

lnet.service should list opa.service in the After line so that it starts after opa but more importantly, it is stopped BEFORE opa is disabled.  This prevents client from hanging on unmount with OmniPath.