arm64: zynqmp: Switch to amd.com emails

Update my and DPs email address to match current setup.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/aba5b19b9c5a95608829e86ad5cc4671c940f1bb.1688992543.git.michal.simek@amd.com
diff --git a/include/configs/xilinx_versal.h b/include/configs/xilinx_versal.h
index e70acd9..a403999 100644
--- a/include/configs/xilinx_versal.h
+++ b/include/configs/xilinx_versal.h
@@ -2,7 +2,7 @@
 /*
  * Configuration for Xilinx Versal
  * (C) Copyright 2016 - 2018 Xilinx, Inc.
- * Michal Simek <michal.simek@xilinx.com>
+ * Michal Simek <michal.simek@amd.com>
  *
  * Based on Configuration for Xilinx ZynqMP
  */