STM32F4x clock checks fixed according to RM0090.pdf

git-svn-id: https://chibios.svn.sourceforge.net/svnroot/chibios/trunk@4765 35acf78f-673a-0410-8e92-d51de3d6d3f4
Fixed bug 3578927.

git-svn-id: https://chibios.svn.sourceforge.net/svnroot/chibios/trunk@4767 35acf78f-673a-0410-8e92-d51de3d6d3f4
git-svn-id: https://chibios.svn.sourceforge.net/svnroot/chibios/trunk@4768 35acf78f-673a-0410-8e92-d51de3d6d3f4
git-svn-id: https://chibios.svn.sourceforge.net/svnroot/chibios/trunk@4769 35acf78f-673a-0410-8e92-d51de3d6d3f4
Fixed bug 3578944.

git-svn-id: https://chibios.svn.sourceforge.net/svnroot/chibios/trunk@4770 35acf78f-673a-0410-8e92-d51de3d6d3f4
Fixed bug Fixed bug 3578944.

git-svn-id: https://chibios.svn.sourceforge.net/svnroot/chibios/trunk@4772 35acf78f-673a-0410-8e92-d51de3d6d3f4
Bug 3578927 again.

git-svn-id: https://chibios.svn.sourceforge.net/svnroot/chibios/trunk@4773 35acf78f-673a-0410-8e92-d51de3d6d3f4
STM32F2xx deleted and merged with STM32F4xx code.

git-svn-id: https://chibios.svn.sourceforge.net/svnroot/chibios/trunk@4775 35acf78f-673a-0410-8e92-d51de3d6d3f4
git-svn-id: https://chibios.svn.sourceforge.net/svnroot/chibios/trunk@4776 35acf78f-673a-0410-8e92-d51de3d6d3f4
git-svn-id: https://chibios.svn.sourceforge.net/svnroot/chibios/trunk@4777 35acf78f-673a-0410-8e92-d51de3d6d3f4
git-svn-id: https://chibios.svn.sourceforge.net/svnroot/chibios/trunk@4778 35acf78f-673a-0410-8e92-d51de3d6d3f4
git-svn-id: https://chibios.svn.sourceforge.net/svnroot/chibios/trunk@4779 35acf78f-673a-0410-8e92-d51de3d6d3f4
Fixed bug 3579434.

git-svn-id: https://chibios.svn.sourceforge.net/svnroot/chibios/trunk@4780 35acf78f-673a-0410-8e92-d51de3d6d3f4
Fixed bug 3579660.

git-svn-id: https://chibios.svn.sourceforge.net/svnroot/chibios/trunk@4781 35acf78f-673a-0410-8e92-d51de3d6d3f4
Fixed bug 3581304.

git-svn-id: https://chibios.svn.sourceforge.net/svnroot/chibios/trunk@4786 35acf78f-673a-0410-8e92-d51de3d6d3f4
Fixed bug 3579734.

git-svn-id: https://chibios.svn.sourceforge.net/svnroot/chibios/trunk@4787 35acf78f-673a-0410-8e92-d51de3d6d3f4
git-svn-id: https://chibios.svn.sourceforge.net/svnroot/chibios/trunk@4788 35acf78f-673a-0410-8e92-d51de3d6d3f4
git-svn-id: https://chibios.svn.sourceforge.net/svnroot/chibios/trunk@4789 35acf78f-673a-0410-8e92-d51de3d6d3f4
git-svn-id: https://chibios.svn.sourceforge.net/svnroot/chibios/trunk@4791 35acf78f-673a-0410-8e92-d51de3d6d3f4
git-svn-id: https://chibios.svn.sourceforge.net/svnroot/chibios/trunk@4792 35acf78f-673a-0410-8e92-d51de3d6d3f4