Change e-mail address of Kamil Lulko

Signed-off-by: Kamil Lulko <kamil.lulko@gmail.com>
diff --git a/arch/arm/cpu/armv7m/stm32f1/clock.c b/arch/arm/cpu/armv7m/stm32f1/clock.c
index acad116..2820848 100644
--- a/arch/arm/cpu/armv7m/stm32f1/clock.c
+++ b/arch/arm/cpu/armv7m/stm32f1/clock.c
@@ -1,6 +1,6 @@
 /*
  * (C) Copyright 2015
- * Kamil Lulko, <rev13@wp.pl>
+ * Kamil Lulko, <kamil.lulko@gmail.com>
  *
  * Copyright 2015 ATS Advanced Telematics Systems GmbH
  * Copyright 2015 Konsulko Group, Matt Porter <mporter@konsulko.com>