Include reason for SO load fail in message

Summary: We found a crash in prod attributed to SO load failure (Logview: https://fburl.com/logview/hrqnb5qs). The stack trace point to the two different reasons, SoSource.LOAD_RESULT_NOT_FOUND and SoSource.LOAD_RESULT_CORRUPTED_LIB_FILE https://fburl.com/diffusion/vrk1edr4. This diff just simply includes the reason in the error message.

Reviewed By: jdlehman

Differential Revision: D18044716

fbshipit-source-id: a4222afb879e3532646df71ed8380409e3b7caf7

java/com/facebook/soloader/SoLoader.java

@@ -786,6 +786,7 @@ private static void doLoadLibraryBySoName(
           message += " caused by: " + cause;
           error.printStackTrace();
         }
+        message += " result: " + result;
         Log.e(TAG, message);
         throw new UnsatisfiedLinkError(message);
       }