Update test-tinystories-executorch: Disable config mobile-32, fix typo #3962

Job	Run time
gather-models-cpu	13s
gather-models-gpu	13s
test-gguf-util (macos-14)	5m 8s
test-mps (macos-m1-stable)	2m 22s
test-mps-dtype (macos-m1-stable)	1m 59s
torchchat-command-load-test (macos-14)	2m 43s
test-tinystories-executorch (16-core-ubuntu)	18m 39s
test-tinystories-executorch (macos-14-xlarge)	14m 11s
compile-gguf (macos-14)	5m 29s
runner-et (16-core-ubuntu)	8m 15s
test-torchao-aoti-experimental (macos-14-xlarge)	3m 28s
runner-et (macos-14-xlarge)	6m 5s
test-torchao-et-experimental (macos-14-xlarge)	10m 54s
runner-aoti (16-core-ubuntu)	6m 33s
test-torchao-experimental-mps (macos-m1-stable)	53s
runner-aoti (macos-14-xlarge)	3m 54s
test-build-runner-et-android / linux-job	12m 39s
test-cpu-compile (x86_64, stories15M)	17m 7s
test-cpu-eval-sanity-check (x86_64, stories15M)	7m 5s
test-cpu-aoti (x86_64, stories15M)	21m 48s
test-cpu-compile (aarch64, stories15M)	9m 57s
test-cpu-aoti (aarch64, stories15M)	11m 9s
test-cpu-eval-sanity-check (aarch64, stories15M)	10m 26s
test-cpu-eval-sanity-check-float16 (x86_64, stories15M)	28m 20s
test-cpu-eval-sanity-check-float32 (x86_64, stories15M)	37m 49s
test-cpu-eval-sanity-check-float16 (aarch64, stories15M)	7m 55s
test-cpu-eval-sanity-check-float32 (aarch64, stories15M)	9m 50s
test-gpu-aoti-bfloat16 (cuda, stories15M) / linux-job	15m 46s
test-gpu-aoti-float16 (cuda, stories15M) / linux-job	14m 13s
test-gpu-aoti-float32 (cuda, stories15M) / linux-job	14m 21s
test-gpu-eval-sanity-check (cuda, stories15M) / linux-job	13m 46s
test-gpu-compile (cuda, stories15M) / linux-job	25m 8s
	5h 48m 18s

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