mesa: refactor: move _mesa_init_exec_table() into new api_exec.c file
(cherry picked from commit b36e6f0baf64491772b8e1a1cddf68a7dcf8ee22)
diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index aa9d112..9748fa0 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -79,6 +79,7 @@
 #include "glheader.h"
 #include "imports.h"
 #include "accum.h"
+#include "api_exec.h"
 #include "arrayobj.h"
 #include "attrib.h"
 #include "blend.h"