* cfglayout.c, loop-doloop.c, profile.c, target-def.h,
	target.h, targhooks.c, tracer.c, tree-ssa-loop-ch.c,
	tree-ssa-loop-unswitch.c, tree-ssa-loop.c, vec.c, vmsdbgout.c,
	config/m32r/m32r.md, config/xtensa/xtensa.h: Update copyright.

From-SVN: r96320