Add RPC service interface

Add interface for implementing services in an RPC endpoint.

Signed-off-by: Imre Kis <imre.kis@arm.com>
Change-Id: Id2639afa003da46230c93e6e55ff2ffa781df53d
diff --git a/deployments/libts/libts.cmake b/deployments/libts/libts.cmake
index 9a1b9e1..0f1a022 100644
--- a/deployments/libts/libts.cmake
+++ b/deployments/libts/libts.cmake
@@ -46,6 +46,7 @@
 # Enable exporting interface symbols for library public interface
 target_compile_definitions(ts PRIVATE
 	EXPORT_PUBLIC_INTERFACE_RPC_CALLER
+	EXPORT_PUBLIC_INTERFACE_RPC_SERVICE
 	EXPORT_PUBLIC_INTERFACE_SERVICE_LOCATOR
 )