Bluetooth: btmrvl: Fix btmrvl_send_module_cfg_cmd()

Change subcmd parameter from int to u8 to match its use:
btmrvl_send_sync_cmd(priv, BT_CMD_MODULE_CFG_REQ, &subcmd, 1);

Signed-off-by: Petri Gynther <pgynther@google.com>
Reviewed-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
diff --git a/drivers/bluetooth/btmrvl_main.c b/drivers/bluetooth/btmrvl_main.c
index 5c0b944..e9dbddb 100644
--- a/drivers/bluetooth/btmrvl_main.c
+++ b/drivers/bluetooth/btmrvl_main.c
@@ -202,7 +202,7 @@
 	return 0;
 }
 
-int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd)
+int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, u8 subcmd)
 {
 	int ret;