ASoC: Update email-id of Rajeev Kumar

rajeev-dlh.kumar@st.com email-id doesn't exist anymore as I have left the
company.  Replace ST's id with Rajeev Kumar <rajeevkumar.linux@gmail.com>
Signed-off-by: Rajeev Kumar <rajeevkumar.linux@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

include/sound/designware_i2s.h

 /*
- * Copyright (ST) 2012 Rajeev Kumar (rajeev-dlh.kumar@st.com)
+ * Copyright (ST) 2012 Rajeev Kumar (rajeevkumar.linux@gmail.com)
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

include/sound/spear_dma.h

 /*
 * linux/spear_dma.h
 *
-* Copyright (ST) 2012 Rajeev Kumar (rajeev-dlh.kumar@st.com)
+* Copyright (ST) 2012 Rajeev Kumar (rajeevkumar.linux@gmail.com)
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by