Enable libsrtp2 on the device.

Change-Id: Ia5f1800aebbe1472ed971f95899e7f37d210362c
diff --git a/Android.bp b/Android.bp
index 7344864..a14ce10 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1,4 +1,5 @@
-cc_library_host_static {
+cc_library_static {
+    host_supported: true,
     name: "libsrtp2",
     srcs: [
         "crypto/cipher/aes.c",