mt76: move band capabilities in mt76_phy

stable inclusion
from stable-v5.10.190
commit b85c7882fd3cc226a2fe26957a7a9fe27b75f753
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I928UI

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=b85c7882fd3cc226a2fe26957a7a9fe27b75f753



--------------------------------

[ Upstream commit 48dbce5c ]

This is a preliminary patch to move properly support mt7915 dbdc

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Stable-dep-of: 421033de ("wifi: mt76: mt7615: do not advertise 5 GHz on first phy of MT7615D (DBDC)")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: sanglipeng <sanglipeng1@jd.com>