Fix typo in the XMEGA SerialSPI peripheral driver.

git-svn-id: http://lufa-lib.googlecode.com/svn/trunk@2731 d5102386-fcda-11dd-9fdb-3debd5008f28
Add move-to-root directives to all ASF XML application modules, to make the code easier to find in the release version of Atmel Studio 6.1.

git-svn-id: http://lufa-lib.googlecode.com/svn/trunk@2733 d5102386-fcda-11dd-9fdb-3debd5008f28