ath9k: cleanup led_pin initial
Make ath_init_leds() and ath_deinit_leds() pairs as the only API to set leds, also removed direction configuration from ath9k_start() and ath9k_stop(). So the initial is more clear now. Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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