Opt host darwin libcxx out of LLD

LLD does not implement force_symbols_weak_list or
force_symbols_not_weak_list. Fallback to ld64.

Test: presubmit
Bug: 236924555
Change-Id: I90acaf3f562993cde6da2d2d8cc75cc18cbfc88a
diff --git a/Android.bp b/Android.bp
index 4b01aa2..c673994 100644
--- a/Android.bp
+++ b/Android.bp
@@ -168,6 +168,9 @@
 
     target: {
         darwin: {
+            // TODO: LLD does not implement force_symbols_weak_list or
+            // force_symbols_not_weak_list. Opt out and keep using ld64.
+            use_clang_lld: false,
             unexported_symbols_list: "lib/libc++unexp.exp",
             force_symbols_not_weak_list: "lib/notweak.exp",
             force_symbols_weak_list: "lib/weak.exp",