Update test-tinystories-executorch: Disable config mobile-32, fix typ… #232

Job	Run time
test-advanced-cpu / linux-job	1m 54s
test-gguf-cpu / linux-job	1m 53s
test-evaluation-cpu / linux-job	1m 57s
test-quantization-cpu / linux-job	2m 7s
test-readme-cpu / linux-job	2m 6s
	9m 57s

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