Remove references to old project name from common files

The project has been renamed from "Arm Trusted Firmware (ATF)" to
"Trusted Firmware-A (TF-A)" long ago. A few references to the old
project name that still remained in various places have now been
removed.

This change doesn't affect any platform files. Any "ATF" references
inside platform files, still remain.

Change-Id: Id97895faa5b1845e851d4d50f5750de7a55bf99e
Signed-off-by: John Tsichritzis <john.tsichritzis@arm.com>
diff --git a/docs/components/secure-partition-manager-design.rst b/docs/components/secure-partition-manager-design.rst
index ac1172c..de0792d 100644
--- a/docs/components/secure-partition-manager-design.rst
+++ b/docs/components/secure-partition-manager-design.rst
@@ -250,7 +250,7 @@
 A SVC causes an exception to be taken to S-EL1. TF-A assumes ownership of S-EL1
 and installs a simple exception vector table in S-EL1 that relays a SVC request
 from a Secure Partition as a SMC request to the SPM in EL3. Upon servicing the
-SMC request, Arm Trusted Firmware returns control directly to S-EL0 through an
+SMC request, Trusted Firmware-A returns control directly to S-EL0 through an
 ERET instruction.
 
 Calling conventions
@@ -806,7 +806,7 @@
 
 --------------
 
-*Copyright (c) 2017-2018, Arm Limited and Contributors. All rights reserved.*
+*Copyright (c) 2017-2019, Arm Limited and Contributors. All rights reserved.*
 
 .. _Armv8-A ARM: https://developer.arm.com/docs/ddi0487/latest/arm-architecture-reference-manual-armv8-for-armv8-a-architecture-profile
 .. _instructions in the EDK2 repository: https://github.com/tianocore/edk2-staging/blob/AArch64StandaloneMm/HowtoBuild.MD