brcm80211: fmac: change function txflowcontrol parameter

Change parameter to device pointer for bus layer interface function
brcmf_txflowcontrol. This is part of the fullmac bus interface
refactoring.

Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Reviewed-by: Alwin Beukers <alwin@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
index 6b0739b..f82f87c 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
@@ -348,9 +348,11 @@
 	return 0;
 }
 
-void brcmf_txflowcontrol(struct brcmf_pub *drvr, int ifidx, bool state)
+void brcmf_txflowcontrol(struct device *dev, int ifidx, bool state)
 {
 	struct net_device *ndev;
+	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
+	struct brcmf_pub *drvr = bus_if->drvr;
 
 	brcmf_dbg(TRACE, "Enter\n");