Added support for STM32F030xx/050xx/060xx devices.


git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/stable_2.6.x@6594 35acf78f-673a-0410-8e92-d51de3d6d3f4
Small change to the STM32 GPIOv2 PAL driver.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/stable_2.6.x@6595 35acf78f-673a-0410-8e92-d51de3d6d3f4