[llvm][Bazel] Add missing library to linkopts on Windows.

Author: akuegel

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

@@ -266,7 +266,9 @@ cc_library(
     }),
     includes = ["include"],
     linkopts = select({
-        "@platforms//os:windows": [],
+        "@platforms//os:windows": [
+            "ws2_32.lib",
+        ],
         "@platforms//os:freebsd": [
             "-pthread",
             "-lexecinfo",