Fix @ -> <at> substitution

When applying the AT91CAP9 patches upstream, something transformed
the '@' character into the ' <at> ' sequence.

The patch below restores the original form in all the places where
it has been modified (the AT91CAP9 files, the AT91SAM9260 files which
were copied from AT91CAP9, and a couple of other files where the
' <at> ' sequence was present).

Signed-off-by: Stelian Pop <stelian@popies.net>
diff --git a/board/atmel/at91sam9260ek/Makefile b/board/atmel/at91sam9260ek/Makefile
index defc085..e6e4082 100644
--- a/board/atmel/at91sam9260ek/Makefile
+++ b/board/atmel/at91sam9260ek/Makefile
@@ -1,6 +1,6 @@
 #
 # (C) Copyright 2003-2008
-# Wolfgang Denk, DENX Software Engineering, wd <at> denx.de.
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 #
 # See file CREDITS for list of people who contributed to this
 # project.
diff --git a/board/atmel/at91sam9260ek/at91sam9260ek.c b/board/atmel/at91sam9260ek/at91sam9260ek.c
index 19b540f..21479ac 100644
--- a/board/atmel/at91sam9260ek/at91sam9260ek.c
+++ b/board/atmel/at91sam9260ek/at91sam9260ek.c
@@ -1,6 +1,6 @@
 /*
  * (C) Copyright 2007-2008
- * Stelian Pop <stelian.pop <at> leadtechdesign.com>
+ * Stelian Pop <stelian.pop@leadtechdesign.com>
  * Lead Tech Design <www.leadtechdesign.com>
  *
  * See file CREDITS for list of people who contributed to this
diff --git a/board/atmel/at91sam9260ek/led.c b/board/atmel/at91sam9260ek/led.c
index 4c53742..ddc375f 100644
--- a/board/atmel/at91sam9260ek/led.c
+++ b/board/atmel/at91sam9260ek/led.c
@@ -1,6 +1,6 @@
 /*
  * (C) Copyright 2007-2008
- * Stelian Pop <stelian.pop <at> leadtechdesign.com>
+ * Stelian Pop <stelian.pop@leadtechdesign.com>
  * Lead Tech Design <www.leadtechdesign.com>
  *
  * See file CREDITS for list of people who contributed to this
diff --git a/board/atmel/at91sam9260ek/nand.c b/board/atmel/at91sam9260ek/nand.c
index abb788a..7c1e6ab 100644
--- a/board/atmel/at91sam9260ek/nand.c
+++ b/board/atmel/at91sam9260ek/nand.c
@@ -1,6 +1,6 @@
 /*
  * (C) Copyright 2007-2008
- * Stelian Pop <stelian.pop <at> leadtechdesign.com>
+ * Stelian Pop <stelian.pop@leadtechdesign.com>
  * Lead Tech Design <www.leadtechdesign.com>
  *
  * (C) Copyright 2006 ATMEL Rousset, Lacressonniere Nicolas
diff --git a/board/atmel/at91sam9260ek/u-boot.lds b/board/atmel/at91sam9260ek/u-boot.lds
index 05a6d83..996f401 100644
--- a/board/atmel/at91sam9260ek/u-boot.lds
+++ b/board/atmel/at91sam9260ek/u-boot.lds
@@ -1,6 +1,6 @@
 /*
  * (C) Copyright 2002
- * Gary Jennejohn, DENX Software Engineering, <gj <at> denx.de>
+ * Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
  *
  * See file CREDITS for list of people who contributed to this
  * project.