[KINETIS] Fix doxygen path
[KINETIS] Fix doxygen path

git-svn-id: de15d415ffb1bc5d91a165b5b7d2093897d104a2@7115 35acf78f-673a-0410-8e92-d51de3d6d3f4

roboknight/chibios-lpc43xx,roboknight/chibios-lpc43xx