Update references to test helpers

Replace:
* tests/src -> framework/tests/src
* tests/include -> framework/tests/include

Except for occurrences of:
* tests/src/test_helpers (since this only contains ssl_helpers.c)
* tests/src/test_certs.h
* tests/include/alt_dummy

Signed-off-by: David Horstmann <david.horstmann@arm.com>
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 46ca440..ec2b18f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -332,7 +332,7 @@
 add_subdirectory(pkgconfig)
 
 #
-# The C files in tests/src directory contain test code shared among test suites
+# The C files in framework/tests/src directory contain test code shared among test suites
 # and programs. This shared test code is compiled and linked to test suites and
 # programs objects as a set of compiled objects. The compiled objects are NOT
 # built into a library that the test suite and program objects would link
@@ -347,24 +347,24 @@
 #
 if(ENABLE_TESTING OR ENABLE_PROGRAMS)
     file(GLOB MBEDTLS_TEST_FILES
-         ${CMAKE_CURRENT_SOURCE_DIR}/tests/src/*.c
-         ${CMAKE_CURRENT_SOURCE_DIR}/tests/src/drivers/*.c)
+         ${CMAKE_CURRENT_SOURCE_DIR}/framework/tests/src/*.c
+         ${CMAKE_CURRENT_SOURCE_DIR}/framework/tests/src/drivers/*.c)
     add_library(mbedtls_test OBJECT ${MBEDTLS_TEST_FILES})
     if(GEN_FILES)
         add_custom_command(
             OUTPUT
-                ${CMAKE_CURRENT_SOURCE_DIR}/tests/src/test_keys.h
+                ${CMAKE_CURRENT_SOURCE_DIR}/framework/tests/src/test_keys.h
             WORKING_DIRECTORY
                 ${CMAKE_CURRENT_SOURCE_DIR}/tests
             COMMAND
                 "${MBEDTLS_PYTHON_EXECUTABLE}"
                 "${CMAKE_CURRENT_SOURCE_DIR}/framework/scripts/generate_test_keys.py"
                 "--output"
-                "${CMAKE_CURRENT_SOURCE_DIR}/tests/src/test_keys.h"
+                "${CMAKE_CURRENT_SOURCE_DIR}/framework/tests/src/test_keys.h"
             DEPENDS
                 ${CMAKE_CURRENT_SOURCE_DIR}/framework/scripts/generate_test_keys.py
         )
-        add_custom_target(test_keys_header DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/tests/src/test_keys.h)
+        add_custom_target(test_keys_header DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/framework/tests/src/test_keys.h)
         add_custom_command(
             OUTPUT
                 ${CMAKE_CURRENT_SOURCE_DIR}/tests/src/test_certs.h
@@ -382,7 +382,7 @@
         add_dependencies(mbedtls_test test_keys_header test_certs_header)
     endif()
     target_include_directories(mbedtls_test
-        PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/tests/include
+        PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/framework/tests/include
         PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/include
         PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/library)
     # Request C11, needed for memory poisoning tests
@@ -392,7 +392,7 @@
          ${CMAKE_CURRENT_SOURCE_DIR}/tests/src/test_helpers/*.c)
     add_library(mbedtls_test_helpers OBJECT ${MBEDTLS_TEST_HELPER_FILES})
     target_include_directories(mbedtls_test_helpers
-        PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/tests/include
+        PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/framework/tests/include
         PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/include
         PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/library
         PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/3rdparty/everest/include)