Fix: Allow individual BL regression test

Signed-off-by: Jianliang Shen <jianliang.shen@arm.com>
Change-Id: I53ef96d91dae3ec1a2f603b46e811dbc3c369865
diff --git a/tests_reg/spe/CMakeLists.txt b/tests_reg/spe/CMakeLists.txt
index f17a434..f00bf64 100644
--- a/tests_reg/spe/CMakeLists.txt
+++ b/tests_reg/spe/CMakeLists.txt
@@ -25,7 +25,7 @@
 # tfm_s_test is IMPORTED to inform CMake that it has no source files.
 add_executable(tfm_s_test IMPORTED)
 
-if(TFM_NS_REG_TEST OR TFM_S_REG_TEST)
+if(TFM_NS_REG_TEST OR TFM_S_REG_TEST OR TEST_BL2 OR TEST_BL1_1 OR TEST_BL1_2)
     set(CONFIG_TFM_TEST_DIR         "${CMAKE_CURRENT_LIST_DIR}/../test/secure_regression")
     set(CONFIG_TFM_TEST_CONFIG_FILE "${CMAKE_CURRENT_LIST_DIR}/../test/config/config.cmake")
 endif()