Update ATen/CUDAGeneratorImpl.h to ATen/cuda/CUDAGeneratorImpl.h to resolve hipify issue

apex/contrib/csrc/fmha/src/fmha.h

@@ -30,7 +30,7 @@
 #include <cuda.h>
 #include <vector>
 
-#include <ATen/CUDAGeneratorImpl.h>
+#include <ATen/cuda/CUDAGeneratorImpl.h>
 #include <ATen/cuda/CUDAGraphsUtils.cuh>
 
 #include <fmha_utils.h>

apex/contrib/csrc/multihead_attn/dropout.h

@@ -3,7 +3,7 @@
 #ifdef OLD_GENERATOR
 #include <ATen/CUDAGenerator.h>
 #else
-#include <ATen/CUDAGeneratorImpl.h>
+#include <ATen/cuda/CUDAGeneratorImpl.h>
 #endif
 
 #include <ATen/cuda/CUDAContext.h>

apex/contrib/csrc/multihead_attn/softmax.h

 #pragma once
 #include "philox.h"
-#include <ATen/CUDAGeneratorImpl.h>
+#include <ATen/cuda/CUDAGeneratorImpl.h>
 #include <ATen/cuda/CUDAGraphsUtils.cuh>
 #include <curand_kernel.h>
 

apex/contrib/csrc/transducer/transducer_joint_kernel.cu

@@ -4,7 +4,7 @@
 
 #include <torch/extension.h>
 #include <ATen/AccumulateType.h>
-#include <ATen/CUDAGeneratorImpl.h>
+#include <ATen/cuda/CUDAGeneratorImpl.h>
 #include <ATen/cuda/CUDAContext.h>
 #include <ATen/cuda/CUDAGraphsUtils.cuh>
 #include <c10/macros/Macros.h>