ath10k: fix indenting in ath10k_wmi_update_noa()

Commit 59ae1d12 ("networking: introduce and use skb_put_data()") introduced
a new checkpatch warning:

drivers/net/wireless/ath/ath10k/wmi.c:3308: code indent should use tabs where possible

Fix that.
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>