MTP: Implement date created field in GetObjectInfo

Bug: 8293874
Change-Id: I6b74fe73362bd4fac34ca8a54e127ae91f82aef9
diff --git a/media/mtp/MtpServer.cpp b/media/mtp/MtpServer.cpp
index 8568dfc..df87db4 100644
--- a/media/mtp/MtpServer.cpp
+++ b/media/mtp/MtpServer.cpp
@@ -704,7 +704,8 @@
         mData.putUInt32(info.mAssociationDesc);
         mData.putUInt32(info.mSequenceNumber);
         mData.putString(info.mName);
-        mData.putEmptyString();    // date created
+        formatDateTime(info.mDateCreated, date, sizeof(date));
+        mData.putString(date);   // date created
         formatDateTime(info.mDateModified, date, sizeof(date));
         mData.putString(date);   // date modified
         mData.putEmptyString();   // keywords