Added FSMC NAND driver

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@7123 35acf78f-673a-0410-8e92-d51de3d6d3f4
STM32 FSMC NAND. Added testhal

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@7124 35acf78f-673a-0410-8e92-d51de3d6d3f4