[PHI decoupling] remove #include "paddle/fluid/platform/bfloat16.h" in phi

[AndPuQing]

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Describe

remove #include "paddle/fluid/platform/bfloat16.h" in phi

replace paddle::platform::bfloat16 to phi::dtype::bfloat16

• [phi] Decoupled phi from fluid tracking issue #47615

[paddle-bot]

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[luotao1]

请 @AndPuQing 解决下冲突

[AndPuQing]

请 @AndPuQing 解决下冲突

done

[luotao1]

2022-11-10 22:03:10 The following tests FAILED: 
2022-11-10 22:03:10             	1825 - test_user_defined_quantization (Timeout)
2022-11-10 22:03:10             	1312 - test_feed_data_check_shape_type (Timeout)
2022-11-10 22:03:10             	1579 - test_trt_fc_fuse_quant_dequant_pass (Timeout)
2022-11-10 22:03:10             	1312 - test_feed_data_check_shape_type (Timeout)
2022-11-10 22:03:10 	1579 - test_trt_fc_fuse_quant_dequant_pass (Timeout)
2022-11-10 22:03:10 	1825 - test_user_defined_quantization (Timeout)
2022-11-10 22:03:10             	1312 - test_feed_data_check_shape_type (Timeout)
2022-11-10 22:03:10 	1579 - test_trt_fc_fuse_quant_dequant_pass (Timeout)
2022-11-10 22:03:10 	1825 - test_user_defined_quantization (Timeout)

Windows 流水线的这几个单测是随机挂，已收到报警邮件，现豁免