GPU-Calc: remove Alloc_Host_Ptr for clmem of NAN vector

Change-Id: I94841f3e4df30265f609b1405453f18f251e6beb
diff --git a/sc/source/core/opencl/formulagroupcl.cxx b/sc/source/core/opencl/formulagroupcl.cxx
index 82cafdb..5c7ed58 100644
--- a/sc/source/core/opencl/formulagroupcl.cxx
+++ b/sc/source/core/opencl/formulagroupcl.cxx
@@ -112,7 +112,7 @@ size_t VectorRef::Marshal(cl_kernel k, int argno, int, cl_program)
            szHostBuffer = requestedLength * sizeof(double);//vector length for NAN vector
        // Marshal as a buffer of NANs
        mpClmem = clCreateBuffer(kEnv.mpkContext,
                (cl_mem_flags) CL_MEM_READ_ONLY|CL_MEM_ALLOC_HOST_PTR,
                (cl_mem_flags) CL_MEM_READ_ONLY,
                szHostBuffer, NULL, &err);
        if (CL_SUCCESS != err)
            throw OpenCLError(err);