media: i2c: adv748x: fix typo in comment for TXB CSI-2 transmitter power down

Fix copy-and-paste error in comment for TXB CSI-2 transmitter power down
sequence.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/i2c/adv748x/adv748x-core.c

@@ -281,7 +281,7 @@ static const struct adv748x_reg_value adv748x_power_down_txb_1lane[] = {
 
 	{ADV748X_PAGE_TXB, 0x31, 0x82},	/* ADI Required Write */
 	{ADV748X_PAGE_TXB, 0x1e, 0x00},	/* ADI Required Write */
-	{ADV748X_PAGE_TXB, 0x00, 0x81},	/* Enable 4-lane MIPI */
+	{ADV748X_PAGE_TXB, 0x00, 0x81},	/* Enable 1-lane MIPI */
 	{ADV748X_PAGE_TXB, 0xda, 0x01},	/* i2c_mipi_pll_en - 1'b1 */
 	{ADV748X_PAGE_TXB, 0xc1, 0x3b},	/* ADI Required Write */