!11668 add FlattenGrad op for inceptionv3-cpu

From: @caojian05
Reviewed-by: @wuxuejian,@oacjiewen
Signed-off-by: @wuxuejian

mindspore/ccsrc/backend/kernel_compiler/cpu/reshape_cpu_kernel.h

@@ -76,6 +76,27 @@ MS_REG_CPU_KERNEL(Flatten, KernelAttr().AddInputAttr(kNumberTypeUInt32).AddOutpu
 MS_REG_CPU_KERNEL(Flatten, KernelAttr().AddInputAttr(kNumberTypeUInt64).AddOutputAttr(kNumberTypeUInt64),
                   ReshapeCPUKernel);
 
+MS_REG_CPU_KERNEL(FlattenGrad, KernelAttr().AddInputAttr(kNumberTypeInt8).AddOutputAttr(kNumberTypeInt8),
+                  ReshapeCPUKernel);
+MS_REG_CPU_KERNEL(FlattenGrad, KernelAttr().AddInputAttr(kNumberTypeInt16).AddOutputAttr(kNumberTypeInt16),
+                  ReshapeCPUKernel);
+MS_REG_CPU_KERNEL(FlattenGrad, KernelAttr().AddInputAttr(kNumberTypeInt32).AddOutputAttr(kNumberTypeInt32),
+                  ReshapeCPUKernel);
+MS_REG_CPU_KERNEL(FlattenGrad, KernelAttr().AddInputAttr(kNumberTypeInt64).AddOutputAttr(kNumberTypeInt64),
+                  ReshapeCPUKernel);
+MS_REG_CPU_KERNEL(FlattenGrad, KernelAttr().AddInputAttr(kNumberTypeBool).AddOutputAttr(kNumberTypeBool),
+                  ReshapeCPUKernel);
+MS_REG_CPU_KERNEL(FlattenGrad, KernelAttr().AddInputAttr(kNumberTypeFloat32).AddOutputAttr(kNumberTypeFloat32),
+                  ReshapeCPUKernel);
+MS_REG_CPU_KERNEL(FlattenGrad, KernelAttr().AddInputAttr(kNumberTypeUInt8).AddOutputAttr(kNumberTypeUInt8),
+                  ReshapeCPUKernel);
+MS_REG_CPU_KERNEL(FlattenGrad, KernelAttr().AddInputAttr(kNumberTypeUInt16).AddOutputAttr(kNumberTypeUInt16),
+                  ReshapeCPUKernel);
+MS_REG_CPU_KERNEL(FlattenGrad, KernelAttr().AddInputAttr(kNumberTypeUInt32).AddOutputAttr(kNumberTypeUInt32),
+                  ReshapeCPUKernel);
+MS_REG_CPU_KERNEL(FlattenGrad, KernelAttr().AddInputAttr(kNumberTypeUInt64).AddOutputAttr(kNumberTypeUInt64),
+                  ReshapeCPUKernel);
+
 MS_REG_CPU_KERNEL(ExpandDims, KernelAttr().AddInputAttr(kNumberTypeInt8).AddOutputAttr(kNumberTypeInt8),
                   ReshapeCPUKernel);
 MS_REG_CPU_KERNEL(ExpandDims, KernelAttr().AddInputAttr(kNumberTypeInt16).AddOutputAttr(kNumberTypeInt16),