Update to Neuron driver 2.26.5 from the 2.28 SDK release

[yeazelm]

Description of changes:
This updates the driver from the latest Neuron SDK release.

Testing done:
Build a variant and confirm the driver loads properly.

Module loads

filename:       /lib/modules/6.1.161/kernel/drivers/neuron/neuron.ko.gz
alias:          pci:v00001d0fd00007064sv*sd*bc*sc*i*
version:        2.26.5.0
license:        GPL
description:    Neuron Driver, built from SHA: 6670442319042643165ab7986e5184496ea4407c
import_ns:      DMA_BUF
srcversion:     8818F61F4109E2E9CE9BA2E
depends:
retpoline:      Y
name:           neuron
vermagic:       6.1.161 SMP preempt mod_unload modversions
sig_id:         PKCS#7
signer:
sig_key:
sig_hashalgo:   unknown

Can see the device:

instance-type: trn1.2xlarge
instance-id: i-####
+--------+--------+----------+--------+--------------+----------+------+
| NEURON | NEURON |  NEURON  | NEURON |     PCI      |   CPU    | NUMA |
| DEVICE | CORES  | CORE IDS | MEMORY |     BDF      | AFFINITY | NODE |
+--------+--------+----------+--------+--------------+----------+------+
| 0      | 2      | 0-1      | 32 GB  | 0000:00:1e.0 | 0-7      | -1   |
+--------+--------+----------+--------+--------------+----------+------+

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.