i2c: algo-pca: fix typo in comment

Signed-off-by: NShailendra Verma <shailendra.capricorn@gmail.com>
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>

drivers/i2c/algos/i2c-algo-pca.c

@@ -521,7 +521,7 @@ static int pca_init(struct i2c_adapter *adap)
 
 		pca_set_con(pca_data, I2C_PCA_CON_ENSIO);
 	}
-	udelay(500); /* 500 us for oscilator to stabilise */
+	udelay(500); /* 500 us for oscillator to stabilise */
 
 	return 0;
 }