Remove TARGET prefix for Freescale

[bulislaw]

We don't need magic names anymore. Thoughts?

@0xc0170 @ithinuel

[0xc0170]

I was just thinking about this and made a prototype how to select properly directory without any prefix:

# LABEL- label to be matched
# DIRECTORY_PATH - directory to be added
function(mbed_add_cmake_directory_if_target_label LABEL DIRECTORY_PATH)
    foreach(key ${MBED_OS_TARGET_LABELS})
        if(${key} STREQUAL ${LABEL})
            add_subdirectory(${DIRECTORY_PATH})
        endif()
    endforeach()
endfunction()

In targets/Freescale/CMakeLists.txt:

mbed_add_target_cmake_directory(K20XX TARGET_K20XX)
mbed_add_target_cmake_directory(KLXX TARGET_KLXX)
mbed_add_target_cmake_directory(MCUXpresso_MCUS TARGET_MCUXpresso_MCUS)

Based on the target lists coming from a target, it would select properly the target folders.

[ithinuel]

+1 though for consistency I'd rather like our story around "targets" to be 100% in sync with the other teams (CF our recent offline discussion and the minute of last tool team's demo)

[0xc0170]

I was considering a use case for not matching tree (labels != folder names) in my earlier comment.

This looks fine to me to remove TARGET_ prefixes - auto matching the dir name based on labels.

(CF our recent offline discussion and the minute of last tool team's demo)

What is this, can you elaborate ?