i2c: i801: Save register SMBSLVCMD value only once

i2c: i801: Save register SMBSLVCMD value only once

Saving the original value of register SMBSLVCMD in
i801_enable_host_notify() doesn't work, because this function is
called not only at probe time but also at resume time. Do it in
i801_probe() instead, so that the saved value is not overwritten at
resume time.

Signed-off-by: Jean Delvare <[email protected]>
Fixes: 22e94bd6779e ("i2c: i801: store and restore the SLVCMD register at load and unload")
Reviewed-by: Benjamin Tissoires <[email protected]>
Tested-by: Jason Andryuk <[email protected]>
Signed-off-by: Wolfram Sang <[email protected]>
Cc: [email protected]	# v4.10+