blorp: Enable SimpleFloatBlendEnable on Xe3+

Signed-off-by: Sagar Ghuge <sagar.ghuge@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32739>

src/intel/blorp/blorp_genX_exec_brw.h

@@ -975,6 +975,9 @@ blorp_emit_blend_state(struct blorp_batch *batch,
             .WriteDisableGreen = params->color_write_disable & 2,
             .WriteDisableBlue = params->color_write_disable & 4,
             .WriteDisableAlpha = params->color_write_disable & 8,
+#if GFX_VER >= 30
+            .SimpleFloatBlendEnable = true,
+#endif
          };
          GENX(BLEND_STATE_ENTRY_pack)(NULL, pos, &entry);
          pos += GENX(BLEND_STATE_ENTRY_length);