RTC. Merge code from trunk
RTC. Merge code from trunk

git-svn-id: 43e074f07e26c83614404e054b665668e569ca29@3280 35acf78f-673a-0410-8e92-d51de3d6d3f4

roboknight/chibios-lpc43xx,roboknight/chibios-lpc43xx