[bazel][lld] Follow up 491b82a (llvmorg-21-init-16192-g491b82a5ec1a)

Author: chapuni

utils/bazel/llvm-project-overlay/lld/BUILD.bazel

@@ -74,6 +74,7 @@ cc_library(
         "ELF/*.cpp",
         "ELF/*.h",
         "ELF/Arch/*.cpp",
+        "ELF/Arch/*.h",
     ]),
     includes = ["ELF"],
     textual_hdrs = [