docs: Update SMCCC doc, other changes for release

Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com>
Change-Id: Ie842d6a9919776de151a4e9304f870aede07c47a
diff --git a/docs/components/arm-sip-service.rst b/docs/components/arm-sip-service.rst
index 01bc04d..b51a94d 100644
--- a/docs/components/arm-sip-service.rst
+++ b/docs/components/arm-sip-service.rst
@@ -430,6 +430,6 @@
 
 --------------
 
-*Copyright (c) 2017-2019, Arm Limited and Contributors. All rights reserved.*
+*Copyright (c) 2017-2020, Arm Limited and Contributors. All rights reserved.*
 
-.. _SMC Calling Convention: http://infocenter.arm.com/help/topic/com.arm.doc.den0028a/index.html
+.. _SMC Calling Convention: https://developer.arm.com/docs/den0028/latest