kernel-6.1: update to 6.1.90

[larvacea]

Rebase to Amazon Linux upstream version 6.1.90-99.173.amzn2023.

Description of changes:

Update kernels to latest AL kernels available in the repositories.

Testing done:

Validate basic functionality through sonobuoy quick test:

> kubectl get nodes -o wide
NAME                                           STATUS   ROLES    AGE     VERSION               INTERNAL-IP      EXTERNAL-IP     OS-IMAGE                                KERNEL-VERSION   CONTAINER-RUNTIME
ip-192-168-82-182.us-east-2.compute.internal   Ready    <none>   3m22s   v1.28.7-eks-c5c5da4   192.168.82.182   3.137.170.173   Bottlerocket OS 1.21.0 (aws-k8s-1.28)   6.1.90           containerd://1.6.31+bottlerocket

> sonobuoy run --mode=quick --wait
[...]
18:39:18             e2e                                         global   complete            Passed:  1, Failed:  0, Remaining:  0
18:39:18    systemd-logs   ip-192-168-82-182.us-east-2.compute.internal   complete                                                 
18:39:18 Sonobuoy plugins have completed. Preparing results for download.
18:39:38             e2e                                         global   complete   passed   Passed:  1, Failed:  0, Remaining:  0
18:39:38    systemd-logs   ip-192-168-82-182.us-east-2.compute.internal   complete   passed                                        
18:39:38 Sonobuoy has completed. Use `sonobuoy retrieve` to get results.

Changes to the configs as reported by tools/diff-kernel-config:

==> configs_k61-2024-05-17/config-aarch64-aws-k8s-1.28-diff <==
+CPU_MITIGATIONS y

==> configs_k61-2024-05-17/config-x86_64-aws-k8s-1.28-diff <==
-SPECULATION_MITIGATIONS y
+ARCH_CONFIGURES_CPU_MITIGATIONS y
+CPU_MITIGATIONS y

==> configs_k61-2024-05-17/config-x86_64-metal-k8s-1.28-diff <==
-SPECULATION_MITIGATIONS y
+ARCH_CONFIGURES_CPU_MITIGATIONS y
+CPU_MITIGATIONS y

==> configs_k61-2024-05-17/config-x86_64-vmware-k8s-1.28-diff <==
-SPECULATION_MITIGATIONS y
+ARCH_CONFIGURES_CPU_MITIGATIONS y
+CPU_MITIGATIONS y

The full diff-report can be found on Gist.

Upstream patch changes dropped one mitigation patch (see the config changes above; the patch was no longer needed) and changed one patch (change function definitions to __head).

Terms of contribution"

By submitting this pull request, I agree that this contribution is dual-licensed under the terms of both the Apache License, version 2.0, and the MIT license.