Enable libc/libdl/libm/linker for host bionic

Disables debuggerd integration unless building for android.

Bug: 31559095
Test: Diff out/soong/build.ninja before/after, only change is moving
      linker's libdebuggerd_client static lib to the beginning of the
      list.
Test: lunch aosp_arm64-eng; mmma -j bionic
Change-Id: I62e725f7a9b98b7fe31637d0a835fd5846b0aff0
diff --git a/libm/Android.bp b/libm/Android.bp
index 11017f6..35f5fe4 100644
--- a/libm/Android.bp
+++ b/libm/Android.bp
@@ -5,6 +5,7 @@
 //
 cc_library {
     name: "libm",
+    defaults: ["linux_bionic_supported"],
 
     srcs: [
         "upstream-freebsd/lib/msun/bsdsrc/b_exp.c",