Build: Fix location for headers in install target

This patch fixes the location of some of the headers
relative to tests which are exported when running
the install target.

Change-Id: I96625995ffeec716c4d8bcda816c961f178253ce
Signed-off-by: Antonio de Angelis <antonio.deangelis@arm.com>
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 9afdc11..738c479 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -81,8 +81,8 @@
 
 install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/framework/test_framework_integ_test.h
 				${CMAKE_CURRENT_SOURCE_DIR}/suites/sst/non_secure/os_wrapper.h
-				${CMAKE_CURRENT_SOURCE_DIR}/test_services/tfm_secure_client_service/tfm_secure_client_service.h
-		DESTINATION tfm/test/inc)
+				${CMAKE_CURRENT_SOURCE_DIR}/test_services/tfm_secure_client_service/tfm_secure_client_service_api.h
+		DESTINATION export/tfm/test/inc)
 
 install(TARGETS tfm_non_secure_tests
 		DESTINATION export/tfm/test/lib