Werk #13773: Fix aarch64 cpu detection

Component Checks & agents
Title Fix aarch64 cpu detection
Date Mar 2, 2022
Checkmk Editon Checkmk Raw (CRE)
Checkmk Version 2.2.0i1 2.1.0b2 2.0.0p22
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed

Correctly identify the number of cpus on a aarch64 system.

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