Enable VNDK for composer 2.4

BUG: 135929065
Test: build
Change-Id: I7c55b48a84840d61d48c588e5c464a6f00fea7f0
diff --git a/graphics/composer/2.4/Android.bp b/graphics/composer/2.4/Android.bp
index 4a92df2..0e1bc09 100644
--- a/graphics/composer/2.4/Android.bp
+++ b/graphics/composer/2.4/Android.bp
@@ -4,8 +4,7 @@
     name: "android.hardware.graphics.composer@2.4",
     root: "android.hardware",
     vndk: {
-        // TODO(b/135929065) enable once we are ready to use.
-        enabled: false,
+        enabled: true,
     },
     srcs: [
         "IComposer.hal",