gallium: add bit to pipe_blit_info to leave current query enabled

Previously the implication was that queries should be disabled during
blits. However glBlitFramebuffer() is supposed to obey the current
query, and this new bit will indicate that to the driver.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "10.2" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

src/gallium/include/pipe/p_state.h

@@ -591,6 +591,9 @@ struct pipe_blit_info
 
    boolean scissor_enable;
    struct pipe_scissor_state scissor;
+
+   boolean render_condition_enable; /**< whether to leave current render
+                                    condition enabled */
 };