Report app signing cert digest in license requests

Bug: 169736869
Test: MediaDrmTest#testLicenseClientInfo
Change-Id: If0ed139f3a219e8e821ca8fbc4b555df3f7c9f4f
diff --git a/media/jni/android_media_MediaDrm.cpp b/media/jni/android_media_MediaDrm.cpp
index 22c3572..d15e848 100644
--- a/media/jni/android_media_MediaDrm.cpp
+++ b/media/jni/android_media_MediaDrm.cpp
@@ -2056,7 +2056,7 @@
     { "closeSessionNative", "([B)V",
       (void *)android_media_MediaDrm_closeSession },
 
-    { "getKeyRequest", "([B[BLjava/lang/String;ILjava/util/HashMap;)"
+    { "getKeyRequestNative", "([B[BLjava/lang/String;ILjava/util/HashMap;)"
       "Landroid/media/MediaDrm$KeyRequest;",
       (void *)android_media_MediaDrm_getKeyRequest },