UPSTREAM: wifi: mt76: mt7925: add link handling to txwi

add link handling to mt792x_tx and writing txwi.

Co-developed-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Co-developed-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Link: https://patch.msgid.link/c0a7c0b33ea2640bcb4f13a5f79a8976b73fa8f2.1720248331.git.sean.wang@kernel.org


Signed-off-by: Felix Fietkau <nbd@nbd.name>
(cherry picked from commit ebb14068
 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

 master)

BUG=b:366169724
TEST=Verify on nissa by AVL test wifi_matfunc

Change-Id: I83c90014637276119ba613663cb6d530f6d73ece
Signed-off-by: Sean Wang <objelf@gmail.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/5737185


Reviewed-by: Jintao Lin <jintaolin@chromium.org>
Tested-by: Jintao Lin <jintaolin@chromium.org>
Commit-Queue: Jintao Lin <jintaolin@chromium.org>
Reviewed-by: Sean Paul <sean@poorly.run>
Signed-off-by: Mateusz Urbańczyk <urbanczyk@google.com>