build: Fix EGL/CEX100 build with GLES2

Some headers files have been renamed or removed and the gles(2) did not
compile anymore, fix that.

clutter/cogl/cogl/driver/gles/cogl-gles.c

@@ -67,7 +67,7 @@ _cogl_check_driver_valid (GError **error)
 
 static const CoglFeatureData cogl_feature_data[] =
   {
-#include "cogl-feature-functions.h"
+#include "cogl-feature-functions-gles.h"
   };
 
 void

clutter/cogl/cogl/driver/gles/cogl-gles2-wrapper.c

@@ -39,7 +39,7 @@
 #include "cogl-fixed-fragment-shader.h"
 #include "cogl-context.h"
 #include "cogl-shader-private.h"
-#include "cogl-program.h"
+#include "cogl-shader.h"
 #include "cogl-internal.h"
 
 #define _COGL_GET_GLES2_WRAPPER(wvar, retval)			\