Testing memcmp and memcpy from TF-A libc

Removing previously used c-picker based tests and fully testing memcmp
and memcpy functions from the TF-A libc by linking them directly to the
test binary.

Change-Id: Ic343094603a563beda43ccda737d0e6f89f254e4
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 8feee29..88a7712 100644
--- a/tests/lib/libc/test_libc.cmake
+++ b/tests/lib/libc/test_libc.cmake
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2019, Arm Limited. All rights reserved.
+# Copyright (c) 2019-2020, Arm Limited. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -9,8 +9,8 @@
 unit_test_add_suite(
 	NAME memcmp
 	SOURCES
+		${TF_A_PATH}/lib/libc/memcmp.c
 		${CMAKE_CURRENT_LIST_DIR}/test_memcmp.cpp
-		${CMAKE_CURRENT_LIST_DIR}/memcmp.yml
 	INCLUDE_DIRECTORIES
 		${TF_A_PATH}/include
 		${TF_A_PATH}/include/lib/libc/aarch64/
@@ -19,8 +19,8 @@
 unit_test_add_suite(
 	NAME memcpy
 	SOURCES
+		${TF_A_PATH}/lib/libc/memcpy.c
 		${CMAKE_CURRENT_LIST_DIR}/test_memcpy.cpp
-		${CMAKE_CURRENT_LIST_DIR}/memcpy.yml
 	INCLUDE_DIRECTORIES
 		${TF_A_PATH}/include
 		${TF_A_PATH}/include/lib/libc/aarch64/