wifi: mt76: mt7915: mcu: increase eeprom command timeout

Increase the timeout for MCU_EXT_CMD_EFUSE_BUFFER_MODE command.

Regular retries upon hardware-recovery have been observed. Increasing
the timeout slightly remedies this problem.

Signed-off-by: David Bauer <mail@david-bauer.net>
Link: https://patch.msgid.link/20250402004528.1036715-2-mail@david-bauer.net


Signed-off-by: Felix Fietkau <nbd@nbd.name>