[KINETIS] Fix base flash size

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@7219 35acf78f-673a-0410-8e92-d51de3d6d3f4
[KINETIS] Move I2C driver to LLD

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@7220 35acf78f-673a-0410-8e92-d51de3d6d3f4