libdynamic_depth: Add host_supported flag to builds.

Bug: 207411352
Test: Built libdynamic_depth host build.
Change-Id: Ib722fa4a83652da86757ba79913bc4287fa6cf8f
diff --git a/Android.bp b/Android.bp
index 94a6488..a88aa9e 100644
--- a/Android.bp
+++ b/Android.bp
@@ -44,16 +44,19 @@
 
 cc_library_headers {
   name: "libdynamic_depth-public_headers",
+  host_supported: true,
   export_include_dirs: ["includes"],
 }
 
 cc_library_headers {
   name: "libdynamic_depth-internal_headers",
+  host_supported: true,
   export_include_dirs: ["internal"],
 }
 
 cc_library {
     name: "libdynamic_depth",
+    host_supported: true,
     defaults: ["libdynamic_depth-defaults"],
     header_libs: [
         "libdynamic_depth-public_headers",