Integrate meta-guf-distro/add_LICENSES_for_external_recipes

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Commit: https://git.seco.com/seco-ne/yocto/layers/meta-guf-distro/-/commit/c402d855fc8d47e3742ada3b0a3fda4b9649e414

LICENSE: Add licenses for copied recipes

We borrow some recipes form public layers. However, most of the public
layers are licensed under the MIT license. To make the licenses clear
copy the corresponding license files into the relevant directories next
to the recipe in question.

Recipes in question:
- rtl8812au
- kbd
- beep
- mxt-app

BCS 746-000658