Update RPC init for ITS and PS in psa-api-test

Signed-off-by: Balint Dobszay <balint.dobszay@arm.com>
Change-Id: I8ea37d05ac9a3b055c8186b6bac9742bfa0d6612
diff --git a/deployments/psa-api-test/service_under_test.h b/deployments/psa-api-test/service_under_test.h
index 29f99f7..834384e 100644
--- a/deployments/psa-api-test/service_under_test.h
+++ b/deployments/psa-api-test/service_under_test.h
@@ -7,8 +7,6 @@
 #ifndef SERVICE_UNDER_TEST_H
 #define SERVICE_UNDER_TEST_H
 
-#include <rpc/common/logging/logging_caller.h>
-
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -19,12 +17,12 @@
  * associate an RPC Caller with the singleton PSA API client used by
  * the API tests.
  */
-int locate_service_under_test(struct logging_caller *call_logger);
+int locate_service_under_test(void);
 
 /**
  * Reliquish the RPC session when the test run is complete.
  */
-void relinquish_service_under_test(void);
+int relinquish_service_under_test(void);
 
 
 #ifdef __cplusplus