Add TX LOFT calibration from mtk driver.
Signed-off-by: NTomislav Požega <pozega.tomislav@gmail.com>
Signed-off-by: NDaniel Golle <daniel@makrotopia.org>
Signed-off-by: NKalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/d9295a9138a1f552b648aacb84e1419d38f5c896.1663445157.git.daniel@makrotopia.org