pan/bi: Add spills/fills parameters

For future shader-db integration.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7206>
diff --git a/src/panfrost/bifrost/compiler.h b/src/panfrost/bifrost/compiler.h
index 65be6d0..47c1099 100644
--- a/src/panfrost/bifrost/compiler.h
+++ b/src/panfrost/bifrost/compiler.h
@@ -481,6 +481,8 @@
        /* Stats for shader-db */
        unsigned instruction_count;
        unsigned loop_count;
+       unsigned spills;
+       unsigned fills;
 } bi_context;
 
 static inline bi_instruction *