Change the way thread priority is handled in binfmt/ to better match the way...

Change the way thread priority is handled in binfmt/ to better match the way that priority is set up for the builtin tasks

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5527 42af7a65-404d-4744-a932-0658087f49c3