Add 'all' option for android flavor #3490

Job	Run time
test-executorch-metal-build / macos-job	5m 8s
export-model-metal-artifact (openai, whisper-small, non-quantized) / macos-job	6m 45s
export-model-metal-artifact (openai, whisper-large-v3-turbo, non-quantized) / macos-job	7m 42s
export-model-metal-artifact (mistralai, Voxtral-Mini-3B-2507, non-quantized) / macos-job	12m 5s
test-model-metal-e2e (mistralai, Voxtral-Mini-3B-2507, non-quantized) / macos-job	7m 6s
test-model-metal-e2e (openai, whisper-small, non-quantized) / macos-job	5m 28s
test-model-metal-e2e (openai, whisper-large-v3-turbo, non-quantized) / macos-job	5m 48s
	50m 2s

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