freedreno/ir3: fix infinite recursion in sched
freedreno/ir3: fix infinite recursion in sched

One more case we need to handle.  One of the src instructions for the
indirect could also end up being ourself.

Signed-off-by: Rob Clark <6f78cdb10adbe0a7fbbf4098125a51f401c77a5f@freedesktop.org>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler