Add TS RPC ABI component

Add definitions and setters/getters for accessing TS RPC protocol fields
of RPC messages transmitted over FF-A direct messages.

Signed-off-by: Imre Kis <imre.kis@arm.com>
Change-Id: I354fee84f693d65382d92eed50634ba9ff69ed65
diff --git a/components/rpc/ts_rpc/common/component.cmake b/components/rpc/ts_rpc/common/component.cmake
new file mode 100644
index 0000000..71d4e8e
--- /dev/null
+++ b/components/rpc/ts_rpc/common/component.cmake
@@ -0,0 +1,18 @@
+#-------------------------------------------------------------------------------
+# Copyright (c) 2020, Arm Limited and Contributors. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+#-------------------------------------------------------------------------------
+if (NOT DEFINED TGT)
+	message(FATAL_ERROR "mandatory parameter TGT is not defined.")
+endif()
+
+
+set_property(TARGET ${TGT} APPEND PROPERTY PUBLIC_HEADER
+	"${CMAKE_CURRENT_LIST_DIR}/ts_rpc_abi.h"
+	)
+
+target_sources(${TGT} PRIVATE
+	"${CMAKE_CURRENT_LIST_DIR}/ts_rpc_abi.c"
+	)