Set min_sdk_version for the Widevine APEX

also remove `use_vndk_as_stable: true` to remove dependency to VNDK
libs.

Bug: 251299786
Test: build WV APEX with V and install it on U device
Change-Id: Ie7f7f9b699119478d4b33f95ab9e6ba7f459346c

libwvdrmengine/apex/Android.bp

@@ -41,12 +41,13 @@ widevine_apex_defaults {
     prebuilts: [
         "com.google.android.widevine.xml",  // etc/vintf
     ],
+    // TODO(b/274041915) remove updatable:false
     updatable: false,
     // TODO(b/268439003) We need an API to get apex version. Until then
     // we'll read apex_manifest.pb to get the version. To label apex_manifest.pb
     // as vendor_configs_file (which the apex can access), turn off force-label.
     use_file_contexts_as_is: true,
-    use_vndk_as_stable: true,
+    min_sdk_version: "UpsideDownCake",
     vendor: true,
 }