Rename add_unit_test_suite function and parameters

The add_unit_test_suite function was renamed to unit_test_add_suite.
This way all future unit test related functions could follow the pattern
of having "unit_test_" as a prefix in their names. Also made parameter
names consistent to the ones used by CMake built-ins. The following
parameters have been renamed:

TEST_NAME     -> NAME
TEST_SOURCES  -> SOURCES
TEST_INCLUDES -> INCLUDE_DIRECTORIES
TEST_DEFINES  -> COMPILE_DEFINITIONS

Change-Id: I02ce4c84cc8b63422aa696a5670e7f5bb65af00c
Signed-off-by: Imre Kis <imre.kis@arm.com>
diff --git a/tests/lib/libc/test_libc.cmake b/tests/lib/libc/test_libc.cmake
index 2dbf66f..8feee29 100644
--- a/tests/lib/libc/test_libc.cmake
+++ b/tests/lib/libc/test_libc.cmake
@@ -6,22 +6,22 @@
 
 include(UnitTest)
 
-add_unit_test_suite(
-	TEST_NAME memcmp
-	TEST_SOURCES
+unit_test_add_suite(
+	NAME memcmp
+	SOURCES
 		${CMAKE_CURRENT_LIST_DIR}/test_memcmp.cpp
 		${CMAKE_CURRENT_LIST_DIR}/memcmp.yml
-	TEST_INCLUDES
+	INCLUDE_DIRECTORIES
 		${TF_A_PATH}/include
 		${TF_A_PATH}/include/lib/libc/aarch64/
 )
 
-add_unit_test_suite(
-	TEST_NAME memcpy
-	TEST_SOURCES
+unit_test_add_suite(
+	NAME memcpy
+	SOURCES
 		${CMAKE_CURRENT_LIST_DIR}/test_memcpy.cpp
 		${CMAKE_CURRENT_LIST_DIR}/memcpy.yml
-	TEST_INCLUDES
+	INCLUDE_DIRECTORIES
 		${TF_A_PATH}/include
 		${TF_A_PATH}/include/lib/libc/aarch64/
 )