panfrost: Adjust quirks for bifrost v6

The G72, which is a bifrost v6, supports fast operations. The selection
should probably be done on a per-GPU basis instead of forcing this quirk
for all v6 GPUs.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6885>
diff --git a/src/panfrost/bifrost/bi_quirks.h b/src/panfrost/bifrost/bi_quirks.h
index 5ec8e02..06ee8c0 100644
--- a/src/panfrost/bifrost/bi_quirks.h
+++ b/src/panfrost/bifrost/bi_quirks.h
@@ -45,8 +45,7 @@
 {
         switch (product_id >> 12) {
         case 6: /* 1st gen */
-                return BIFROST_NO_PRELOAD |
-                        BIFROST_NO_FAST_OP;
+                return BIFROST_NO_PRELOAD;
 
         case 7: /* 2nd gen */
         case 8: /* 3rd gen */