llvmPackages: add `asl20-llvm` to licenses for v19+ (#314347)

Changed files
+4 -1
pkgs
development
compilers
llvm
+4 -1
pkgs/development/compilers/llvm/common/common-let.nix
···
rec {
llvm_meta = {
-
license = lib.licenses.ncsa;
+
license = with lib.licenses; [ ncsa ] ++
+
# Contributions after June 1st, 2024 are only licensed under asl20-llvm:
+
# https://github.com/llvm/llvm-project/pull/92394
+
lib.optional (lib.versionAtLeast release_version "19") asl20-llvm;
maintainers = lib.teams.llvm.members;
# See llvm/cmake/config-ix.cmake.