ath5k: fix incorrect indentation

smatch said:

drivers/net/wireless/ath/ath5k/phy.c:1449 ath5k_hw_channel() warn: inconsistent indenting
drivers/net/wireless/ath/ath5k/reset.c:637 ath5k_hw_on_hold() warn: inconsistent indenting
drivers/net/wireless/ath/ath5k/reset.c:702 ath5k_hw_nic_wakeup() warn: inconsistent indenting

All of these lines were indented a tabstop too far.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>