btmrvl_sdio: fix typo 'btmrvl_sdio_sd6888'

It should be 'btmrvl_sdio_sd8688', of course.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/bluetooth/btmrvl_sdio.c

@@ -81,7 +81,7 @@ static const struct btmrvl_sdio_card_reg btmrvl_reg_8787 = {
 	.io_port_2 = 0x7a,
 };
 
-static const struct btmrvl_sdio_device btmrvl_sdio_sd6888 = {
+static const struct btmrvl_sdio_device btmrvl_sdio_sd8688 = {
 	.helper		= "sd8688_helper.bin",
 	.firmware	= "sd8688.bin",
 	.reg		= &btmrvl_reg_8688,
@@ -98,7 +98,7 @@ static const struct btmrvl_sdio_device btmrvl_sdio_sd8787 = {
 static const struct sdio_device_id btmrvl_sdio_ids[] = {
 	/* Marvell SD8688 Bluetooth device */
 	{ SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9105),
-			.driver_data = (unsigned long) &btmrvl_sdio_sd6888 },
+			.driver_data = (unsigned long) &btmrvl_sdio_sd8688 },
 	/* Marvell SD8787 Bluetooth device */
 	{ SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x911A),
 			.driver_data = (unsigned long) &btmrvl_sdio_sd8787 },