linux-yocto/6.16: cfg: drm for x86 32bit

linux-yocto/6.16: cfg: drm for x86 32bit

Integrating the following commit(s) to linux-yocto/.:

1/1 [
    Author: Bruce Ashfield
    Email: bruce.ashfield@gmail.com
    Subject: drm: add x86 (32bit) to valid architectures
    Date: Tue, 23 Sep 2025 15:55:27 -0400

    vboxguest drivers / DRM aren't valid for all architectures and
    throw warnings if they are enabled for those invalid architectures.

    ARM/x86-64 were previously enabled, and we add x86 32bit to the
    list to allow vboxguestdrivers (and similar) to have the kernel
    configuration options they need to build (and run).

    Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
]

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