net-snmp: update to 5.9.5.2

[AuthorReflex]

📦 Package Details

Maintainer: @stintel

Description:
Changelog: https://github.com/net-snmp/net-snmp/blob/v5.9.5.2/CHANGES
Refresh patches for current version changes
Clean 750-ieee802dot11.patch - remove unnecesary trailing spaces
Remove 010-HOST-MIB-hr_filesys-fix-compile-error.patch‎ - with current compiler standards it is not necessary. Hovever, it's produces an error "ISO C90 forbids mixed declarations and code" due to variable declaration after empty statement

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🧪 Run Testing Details

• OpenWrt Version: 25.10/trunk
• OpenWrt Target/Subtarget: mediatek/mt7622
• OpenWrt Device: Xiaomi Redmi AX6S

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✅ Formalities

• I have reviewed the CONTRIBUTING.md file for detailed contributing guidelines.

If your PR contains a patch:

• It can be applied using git am
• It has been refreshed to avoid offsets, fuzzes, etc., using

  make package/<your-package>/refresh V=s

• It is structured in a way that it is potentially upstreamable
  _{(e.g., subject line, commit description, etc.)
  We must try to upstream patches to reduce maintenance burden.}