[API Compatibility] Support legacy reduction args for BCE/MSE/multi_margin/nll_loss #25904

Job	Run time
Check file paths	1m 8s
Clone-linux / Check bypass / Check bypass	7s
Clone-linux / Clone Paddle	5m 53s
build docker images / Build docker	3m 14s
Mac-CPU / Check bypass / Check bypass	21s
Linux-IXUCA / Check bypass / Check bypass	18s
Linux-IXUCA / Build and Test	1m 55s
Mac-CPU / Build and test	24m 6s
PR-CI-SOT / Check bypass / Check bypass	5s
Linux-XPU / Check bypass / Check bypass	6s
Linux-CPU / Check bypass / Check bypass	7s
Distribute-stable-build / Check bypass / Check bypass	6s
Linux-DCU / Check bypass / Check bypass	7s
Distribute-stable-build / Build	21m 56s
PR-CI-SOT / Build and Test	59m 59s
Linux-XPU / Build	23m 56s
Linux-CPU / Build and test	39m 2s
Linux-DCU / Build	40m 18s
Linux-XPU / Test	31m 1s
Linux-NPU	0s
Linux-DCU / Test	1h 4m 10s
	5h 17m 55s

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