Add missing host ldlibs

Host builds were compiling without -Wl,--no-undefined.  Add missing
host ldlibs so that -Wl,--no-undefined can be added again.

Test: m -j host
Bug: 32305815
Change-Id: I456098775ead2bddae3e61c7055b2bde3f6b38ff
diff --git a/tests/libs/Android.bp b/tests/libs/Android.bp
index e1a4239..fe0d6ab 100644
--- a/tests/libs/Android.bp
+++ b/tests/libs/Android.bp
@@ -363,6 +363,9 @@
         android: {
             shared_libs: ["libdl"],
         },
+        host: {
+            host_ldlibs: ["-ldl"],
+        },
     },
 }
 
@@ -372,6 +375,14 @@
     defaults: ["bionic_testlib_defaults"],
     srcs: ["dlsym_from_this_functions.cpp"],
     shared_libs: ["libtest_dlsym_from_this_grandchild"],
+    target: {
+        android: {
+            shared_libs: ["libdl"],
+        },
+        host: {
+            host_ldlibs: ["-ldl"],
+        },
+    },
 }
 
 // -----------------------------------------------------------------------------
@@ -410,6 +421,9 @@
         android: {
             shared_libs: ["libdl"],
         },
+        host: {
+            host_ldlibs: ["-ldl"],
+        },
     },
 }