linux-yocto/6.18: update CVE exclusions (6.18.5)

linux-yocto/6.18: update CVE exclusions (6.18.5)

Data pulled from: https://github.com/CVEProject/cvelistV5

    1/1 [
        Author: cvelistV5 Github Action
        Email: github_action@example.com
        Subject: 6 changes (2 new | 4 updated): - 2 new CVEs: CVE-2025-46068, CVE-2025-46070 - 4 updated CVEs: CVE-2025-46066, CVE-2025-46067, CVE-2025-71063, CVE-2026-0851
        Date: Mon, 12 Jan 2026 16:41:36 +0000

    ]

Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>