vmbase: integration_test: Use Android logger

Use the Android logger instead of env_logger in order for the logs of
vmbase_example to be part of the tests's capture logs (logcat_test*.txt)
as they were previously discarded.

Test: atest vmbase_example.integration_test
Change-Id: I9844c515e5ee54070bcead8670526f01fb8679ff
diff --git a/vmbase/example/Android.bp b/vmbase/example/Android.bp
index e9a3f98..0f1e66a 100644
--- a/vmbase/example/Android.bp
+++ b/vmbase/example/Android.bp
@@ -54,10 +54,11 @@
     edition: "2021",
     rustlibs: [
         "android.system.virtualizationservice-rust",
+        "libandroid_logger",
         "libanyhow",
-        "libenv_logger",
         "liblibc",
         "liblog_rust",
+        "libnix",
         "libvmclient",
     ],
     data: [