[KINETIS] Add PIT registers

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@7244 35acf78f-673a-0410-8e92-d51de3d6d3f4
[KINETIS] Add GPT driver

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@7245 35acf78f-673a-0410-8e92-d51de3d6d3f4
[KINETIS] Add GPT test demo

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@7246 35acf78f-673a-0410-8e92-d51de3d6d3f4