Disable pre-optimization for TeleService app.

This is an attempt to prevent the breakage described in b/146727232.

Bug: 146727232
Test: m (not able to repro bug locally)
Change-Id: Iff82616b9ddad2267993f3f7e0d7a6d47f42d50f
diff --git a/Android.bp b/Android.bp
index a7ae0cc..0c215b8 100644
--- a/Android.bp
+++ b/Android.bp
@@ -72,6 +72,10 @@
         ],
     },
 
+    dex_preopt: {
+        enabled: false,
+    },
+
     defaults: ["SettingsLibDefaults"],
 
     proto: {