Building with LLVM is a requirement for every category higher than downstream, so this kernel must be built with LLVM. This is part of a larger distro-wide effort to build with LLVM. - Builds with LLVM - Fixes style errors - Updates kconfig Signed-off-by: Aster Boese <asterboese@mailbox.org> Part-of: <https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/9039>