Revert "Revert "apex_vndk uses vendor variants only""

This reverts commit 5df3b11f7865ea81eab765d30c82489bfd7e5fd5.

Reason for revert: re-land with a fix

Fix a broken soong test
Add implicit dependency (libprofile-clang-extra) to make a test pass.

Bug: n/a
Test: m
Change-Id: I0b179199bc032501354f8e24782837453781bd8c
diff --git a/Android.bp b/Android.bp
index ab03a36..c4c958c 100644
--- a/Android.bp
+++ b/Android.bp
@@ -473,6 +473,7 @@
     ],
     testSrcs: [
         "apex/apex_test.go",
+        "apex/vndk_test.go",
     ],
     pluginFor: ["soong_build"],
 }