* dsp16xx-protos.h: New file.

	* dsp16xx.c: Include tm_p.h.  Add static prototypes.  Fix compile
	time warnings.

	* dsp16xx.h: Move prototypes to dsp16xx-protos.h.  Fix compile time
	warnings.

	* dsp16xx.md: Likewise.

From-SVN: r31416