Revert "glsl2: Use stdint.h instead of inttypes.h"

This reverts commit a77a6bc008b3146c56431fa520a00e1f8dfa3938.
diff --git a/src/glsl/glcpp/glcpp-parse.y b/src/glsl/glcpp/glcpp-parse.y
index ce4197e..3d08ce6 100644
--- a/src/glsl/glcpp/glcpp-parse.y
+++ b/src/glsl/glcpp/glcpp-parse.y
@@ -26,7 +26,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <assert.h>
-#include <stdint.h>
+#include <inttypes.h>
 
 #include "glcpp.h"
 #include "main/mtypes.h"