Fix Stelian's email address

Change my old email address which is no longer valid.

Signed-off-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
diff --git a/board/esd/otc570/Makefile b/board/esd/otc570/Makefile
index 1819292..3e94d19 100644
--- a/board/esd/otc570/Makefile
+++ b/board/esd/otc570/Makefile
@@ -3,7 +3,7 @@
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 #
 # (C) Copyright 2008
-# Stelian Pop <stelian.pop@leadtechdesign.com>
+# Stelian Pop <stelian@popies.net>
 # Lead Tech Design <www.leadtechdesign.com>
 #
 # See file CREDITS for list of people who contributed to this