Option for lwip link status poll interval.

git-svn-id: https://chibios.svn.sourceforge.net/svnroot/chibios/trunk@5047 35acf78f-673a-0410-8e92-d51de3d6d3f4
Removed dependency to ch.h.

git-svn-id: https://chibios.svn.sourceforge.net/svnroot/chibios/trunk@5049 35acf78f-673a-0410-8e92-d51de3d6d3f4


git-svn-id: https://chibios.svn.sourceforge.net/svnroot/chibios/trunk@5050 35acf78f-673a-0410-8e92-d51de3d6d3f4
Different mode for unconnected pins.

git-svn-id: https://chibios.svn.sourceforge.net/svnroot/chibios/trunk@5054 35acf78f-673a-0410-8e92-d51de3d6d3f4


git-svn-id: https://chibios.svn.sourceforge.net/svnroot/chibios/trunk@5057 35acf78f-673a-0410-8e92-d51de3d6d3f4