Reland "Enable LTO in Android tree."

This reverts commit 3d46e0d12b172526482d343a6d1a25a9a061af35.

Reason for revert: We should enable this now to let it soak.

Change-Id: I7d0f672ba5ee1c34320fe840e90c951f917cef08
diff --git a/Android.bp b/Android.bp
index b7fc087..deb460b 100644
--- a/Android.bp
+++ b/Android.bp
@@ -728,6 +728,13 @@
       cflags: ["-DPERFETTO_BUILD_WITH_ANDROID_USERDEBUG"],
     },
   },
+  target: {
+    android: {
+      lto: {
+        thin: true,
+      },
+    },
+  },
 }
 
 // GN target: //:perfetto_integrationtests