qtnfmac: fix invalid channel information output

Do not attempt to print frequency for an invalid channel
provided by firmware. That channel may simply not exist.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Sergey Matyukevich 2019-11-13 11:06:51 +00:00 • committed by Kalle Valo
commit 24227a9e95