[LU-12611] LNet Routing: don't stop adding routes for any error

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.13.0
• Severity: 3
• Assignee: Amir Shehata (Inactive)
• Reporter: Amir Shehata (Inactive)

Description

When adding routes from lnetctl align the behavior to be similar to adding routes from module parameters. IE, continue adding the rest of the routes specified even if the current route already exists or the host is not reachable.