i2c-mpc: suppress I2C device probing

This patch suppresses I2C device probing by clearing the class field
of the "struct i2c_adapter" for the MPC I2C bus adapters. Some board
configurations which rely on probing must be fixed up by adding a
proper I2C device node to the DTS file, like the TQM85xx modules.
Signed-off-by: NWolfgang Grandegger <wg@grandegger.com>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

drivers/i2c/busses/i2c-mpc.c

@@ -312,7 +312,6 @@ static struct i2c_adapter mpc_ops = {
 	.name = "MPC adapter",
 	.id = I2C_HW_MPC107,
 	.algo = &mpc_algo,
-	.class = I2C_CLASS_HWMON | I2C_CLASS_SPD,
 	.timeout = 1,
 };