Enable libdemangle and libunwindstack on host bionic

libunwindstack_test:UnwindTest.* are all failing, but at least this
builds.

Test: Enable host bionic; m
Test: out/soong/host/linux_bionic-x86/nativetest64/libdemangle_test/libdemangle_test
Test: out/soong/host/linux_bionic-x86/nativetest64/libunwindstack_test/libunwindstack_test
Change-Id: Ie6c774ecb4d7a467b5ea7ae977833e9cba178f2d
diff --git a/demangle/Android.bp b/demangle/Android.bp
index e55c886..89b8772 100644
--- a/demangle/Android.bp
+++ b/demangle/Android.bp
@@ -24,6 +24,12 @@
         "-Werror",
         "-Wextra",
     ],
+
+    target: {
+        linux_bionic: {
+            enabled: true,
+        },
+    },
 }
 
 cc_library {
diff --git a/libunwindstack/Android.bp b/libunwindstack/Android.bp
index 32ba692..e1957ca 100644
--- a/libunwindstack/Android.bp
+++ b/libunwindstack/Android.bp
@@ -29,6 +29,9 @@
         darwin: {
             enabled: false,
         },
+        linux_bionic: {
+            enabled: true,
+        },
     },
 }