Werk #14438: fritz_wan_if: Fix interface status for non DSL devices

Component	Checks & agents
Title	fritz_wan_if: Fix interface status for non DSL devices
Date	Jun 22, 2022
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.2.0b1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME) 2.1.0p4 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

Modern Fritz boxes (non DSL) don't use or don't have the "NewLinkStatus" value. Instead we use "NewPhysicalLinkStatus" for those.

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