nv50/ir: do not insert texture barriers on gm107

It's actually useless to insert those texture barriers post RA
because the current control code (ie. st 0x0) will wait for all
dependencies before issuing a new instruction.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Pierre Moreau <pierre.morrow@free.fr>

src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp

@@ -190,7 +190,8 @@ NVC0LegalizePostRA::NVC0LegalizePostRA(const Program *prog)
    : rZero(NULL),
      carry(NULL),
      pOne(NULL),
-     needTexBar(prog->getTarget()->getChipset() >= 0xe0)
+     needTexBar(prog->getTarget()->getChipset() >= 0xe0 &&
+                prog->getTarget()->getChipset() < 0x110)
 {
 }