Werk #13773: Fix aarch64 cpu detection

Component	Checks & agents
Title	Fix aarch64 cpu detection
Date	Mar 2, 2022
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.2.0b1 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT 2.1.0b2 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT 2.0.0p22 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT

Correctly identify the number of cpus on a aarch64 system.

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