sti: fix STMicroelectronics copyright

Uniformize all STMicroelectronics copyrights headers for STi
related code.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
diff --git a/drivers/reset/sti-reset.c b/drivers/reset/sti-reset.c
index 024b996..17786f9 100644
--- a/drivers/reset/sti-reset.c
+++ b/drivers/reset/sti-reset.c
@@ -1,6 +1,6 @@
 /*
- * Copyright (c) 2017
- * Patrice Chotard <patrice.chotard@st.com>
+ * Copyright (C) 2017, STMicroelectronics - All Rights Reserved
+ * Author(s): Patrice Chotard, <patrice.chotard@st.com> for STMicroelectronics.
  *
  * SPDX-License-Identifier:	GPL-2.0+
  */