i2c-nforce2: Declare PEC as supported

The i2c-nforce2 driver has SMBus PEC support, so it should say so.
Signed-off-by: NJean Delvare <khali@linux-fr.org>

drivers/i2c/busses/i2c-nforce2.c

@@ -264,6 +264,7 @@ static u32 nforce2_func(struct i2c_adapter *adapter)
 	/* other functionality might be possible, but is not tested */
 	return I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE |
 	       I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA |
+	       I2C_FUNC_SMBUS_PEC |
 	       (((struct nforce2_smbus*)adapter->algo_data)->blockops ?
 		I2C_FUNC_SMBUS_BLOCK_DATA : 0);
 }