Fix files mis-synced from cdm repo to Android

Test: build
Bug: 161477208
Change-Id: I2d48dff987fe37a54ffdfc47a7896fba975a0e20

libwvdrmengine/mediadrm/Android.bp

@@ -13,6 +13,15 @@
 // limitations under the License.
 
 // ----------------------------------------------------------------------------
+// *** THIS PACKAGE HAS SPECIAL LICENSING CONDITIONS.  PLEASE
+//     CONSULT THE OWNERS AND opensource-licensing@google.com BEFORE
+//     DEPENDING ON IT IN YOUR PROJECT. ***
+package {
+    // See: http://go/android-license-faq
+    //   legacy_by_exception_only (by exception only)
+    default_applicable_licenses: ["vendor_widevine_license"],
+}
+
 // Builds libwvdrmdrmplugin_hidl
 //
 cc_library_static {