wifi: mt76: mt7996: Fix NPU stop procedure
Move mt7996_npu_hw_stop routine before disabling rx NAPIs in order to
fix NPU stop procedure used during device L1 SER recovery.
Add missing usleep_range in mt7996_npu_hw_stop().
Fixes: 377aa17d2aedc ("wifi: mt76: mt7996: Add NPU offload support to MT7996 driver")
Tested-by: Kang Yang <kang.yang@airoha.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20260122-mt76-npu-eagle-offload-v2-1-2374614c0de6@kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>