Cmake: Disable regression tests for IPC configuration

Existing regression tests cases and test partitions does
not rely on IPC mode. Disable regression tests and update
related switches for IPC configuration.

Change-Id: Iee075e29e16667c76935bf243fbc5b70428a53dd
Signed-off-by: Edison Ai <edison.ai@arm.com>
diff --git a/ConfigCoreIPC.cmake b/ConfigCoreIPC.cmake
index c24d1b3..545fd49 100644
--- a/ConfigCoreIPC.cmake
+++ b/ConfigCoreIPC.cmake
@@ -1,5 +1,5 @@
 #-------------------------------------------------------------------------------
-# Copyright (c) 2018, Arm Limited. All rights reserved.
+# Copyright (c) 2018-2019, Arm Limited. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -26,7 +26,7 @@
 ##These variables select how the projects are built. Each project will set
 #various project specific settings (e.g. what files to build, macro
 #definitions) based on these.
-set (REGRESSION True)
+set (REGRESSION False)
 set (CORE_TEST False)
 set (CORE_IPC True)