fix header issue

SteveBronder · SteveBronder · commit 6554caef9b64 · 2021-09-23T13:53:57.000-04:00
diff --git a/stan/math/opencl/qr_decomposition.hpp b/stan/math/opencl/qr_decomposition.hpp
@@ -10,7 +10,7 @@
 #include <stan/math/opencl/prim/multiply.hpp>
 #include <stan/math/opencl/prim/sum.hpp>
 #include <stan/math/opencl/copy.hpp>
-#include <CL/cl.hpp>
+#include <CL/opencl.hpp>
 #include <algorithm>
 #include <vector>
 #include <cmath>
