CMake: set CMAKE_MODULE_PATH in the Mbed OS CMakelists.txt

Update CMAKE_MODULE_PATH at once place.

Note, we update also CMAKE_MODULE_PATH in app.cmake. This is temporary until we get a proper way to include
Mbed Os (removing app.cmake need to be included by an application).

Author: 0xc0170

CMakeLists.txt

@@ -10,6 +10,11 @@ include(mbed_set_linker_script)
 
 project(mbed-os)
 
+# Add all paths to the list files within Mbed OS
+list(APPEND CMAKE_MODULE_PATH 
+    "${mbed-os_SOURCE_DIR}/platform/FEATURE_EXPERIMENTAL_API/FEATURE_PSA/TARGET_TFM/TARGET_TFM_LATEST/scripts;${mbed-os_SOURCE_DIR}/targets/TARGET_Cypress/scripts;${mbed-os_SOURCE_DIR}/targets/TARGET_NXP/scripts"
+)
+
 add_library(mbed-core INTERFACE)
 
 add_library(mbed-os INTERFACE)

platform/FEATURE_EXPERIMENTAL_API/FEATURE_PSA/TARGET_TFM/TARGET_TFM_LATEST/CMakeLists.txt

@@ -40,4 +40,3 @@ target_sources(mbed-psa
         src/tfm_ps_ipc_api.c
 )
 
-set(CMAKE_MODULE_PATH "${CMAKE_MODULE_PATH};${CMAKE_CURRENT_SOURCE_DIR}/scripts")

targets/TARGET_Cypress/CMakeLists.txt

@@ -1,8 +1,6 @@
 # Copyright (c) 2020-2021 ARM Limited. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-set(CMAKE_MODULE_PATH "${CMAKE_MODULE_PATH};${CMAKE_CURRENT_SOURCE_DIR}/scripts")
-
 add_subdirectory(TARGET_PSOC6 EXCLUDE_FROM_ALL)
 
 add_library(mbed-cy-external-wifi-fw INTERFACE)

targets/TARGET_NXP/CMakeLists.txt

@@ -1,8 +1,6 @@
 # Copyright (c) 2020-2021 ARM Limited. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-set(CMAKE_MODULE_PATH "${CMAKE_MODULE_PATH};${CMAKE_CURRENT_SOURCE_DIR}/scripts")
-
 add_subdirectory(TARGET_LPC11XX_11CXX EXCLUDE_FROM_ALL)
 add_subdirectory(TARGET_LPC176X EXCLUDE_FROM_ALL)
 add_subdirectory(TARGET_MCUXpresso_MCUS EXCLUDE_FROM_ALL)

tools/cmake/app.cmake

@@ -2,7 +2,7 @@
 # SPDX-License-Identifier: Apache-2.0
 
 # Add our CMake list files to CMake default module path
-set(CMAKE_MODULE_PATH "${CMAKE_MODULE_PATH};${CMAKE_CURRENT_LIST_DIR}")
+list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_LIST_DIR})
 
 find_program(CCACHE "ccache")
 if(CCACHE)