wifi: mt76: mt7925: add pci restore for hibernate

wifi: mt76: mt7925: add pci restore for hibernate

Due to hibernation causing a power off and power on,
this modification adds mt7925_pci_restore callback function for kernel.
When hibernation resumes, it calls mt7925_pci_restore to reset the device,
allowing it to return to the state it was in before the power off.

Signed-off-by: Jack Kao <jack.kao@mediatek.com>
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Link: https://patch.msgid.link/20250901073200.230033-1-mingyen.hsieh@mediatek.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>