st/mesa: add compute program dispatch callbacks

This state tracker implements DispatchCompute() and DispatchComputeIndirect().

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
diff --git a/src/mesa/Makefile.sources b/src/mesa/Makefile.sources
index 6669f29..f93c782 100644
--- a/src/mesa/Makefile.sources
+++ b/src/mesa/Makefile.sources
@@ -427,6 +427,8 @@
 	state_tracker/st_cb_bufferobjects.h \
 	state_tracker/st_cb_clear.c \
 	state_tracker/st_cb_clear.h \
+	state_tracker/st_cb_compute.c \
+	state_tracker/st_cb_compute.h \
 	state_tracker/st_cb_condrender.c \
 	state_tracker/st_cb_condrender.h \
 	state_tracker/st_cb_copyimage.c \