wifi: mt76: mt7925: fix the wrong config for tx interrupt

wifi: mt76: mt7925: fix the wrong config for tx interrupt

MT_INT_TX_DONE_MCU_WM may cause tx interrupt to be mishandled
during a reset failure, leading to the reset process failing.
By using MT_INT_TX_DONE_MCU instead of MT_INT_TX_DONE_MCU_WM,
the handling of tx interrupt is improved.

Cc: stable@vger.kernel.org
Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips")
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Link: https://patch.msgid.link/20250612060931.135635-1-mingyen.hsieh@mediatek.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>