Fixed sample video corrupted in MediaCodec mode.

Change-Id: I50c5660072d40f6e297e58fd026ea04c89d6a70a
related-to-bug: 6732061
diff --git a/media/libmediaplayerservice/Crypto.h b/media/libmediaplayerservice/Crypto.h
index c5aa3c6..d066774 100644
--- a/media/libmediaplayerservice/Crypto.h
+++ b/media/libmediaplayerservice/Crypto.h
@@ -42,7 +42,7 @@
     virtual bool requiresSecureDecoderComponent(
             const char *mime) const;
 
-    virtual status_t decrypt(
+    virtual ssize_t decrypt(
             bool secure,
             const uint8_t key[16],
             const uint8_t iv[16],