gapi: fix tests build

modules/gapi/test/common/gapi_compoundkernel_tests.cpp

@@ -7,7 +7,7 @@
 
 // FIXME: move out from Common
 
-#include "test_precomp.hpp"
+#include "../test_precomp.hpp"
 #include "opencv2/gapi/cpu/core.hpp"
 
 #include <ade/util/algorithm.hpp>

modules/gapi/test/common/gapi_core_tests.cpp

@@ -5,5 +5,5 @@
 // Copyright (C) 2018 Intel Corporation
 
 
-#include "test_precomp.hpp"
+#include "../test_precomp.hpp"
 #include "gapi_core_tests_inl.hpp"

modules/gapi/test/common/gapi_imgproc_tests.cpp

@@ -5,5 +5,5 @@
 // Copyright (C) 2018 Intel Corporation
 
 
-#include "test_precomp.hpp"
+#include "../test_precomp.hpp"
 #include "gapi_imgproc_tests_inl.hpp"

modules/gapi/test/common/gapi_operators_tests.cpp

@@ -5,5 +5,5 @@
 // Copyright (C) 2018 Intel Corporation
 
 
-#include "test_precomp.hpp"
+#include "../test_precomp.hpp"
 #include "gapi_operators_tests_inl.hpp"