wl12xx: make WL1271_FLAG_IDLE flag per-vif

This flag should be set per-vif, rather than globally.

Rename the flag to indicate IN_USE (rather than IDLE), as
in the default configuration (i.e. flag is clear) the vif
should be idle.

Change all the bit operations (and elp conditions) appropriately.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
diff --git a/drivers/net/wireless/wl12xx/wl12xx.h b/drivers/net/wireless/wl12xx/wl12xx.h
index d21f71f..b2b09cd 100644
--- a/drivers/net/wireless/wl12xx/wl12xx.h
+++ b/drivers/net/wireless/wl12xx/wl12xx.h
@@ -241,7 +241,6 @@
 	WL1271_FLAG_IN_ELP,
 	WL1271_FLAG_ELP_REQUESTED,
 	WL1271_FLAG_IRQ_RUNNING,
-	WL1271_FLAG_IDLE,
 	WL1271_FLAG_FW_TX_BUSY,
 	WL1271_FLAG_DUMMY_PACKET_PENDING,
 	WL1271_FLAG_SUSPENDED,
@@ -262,6 +261,7 @@
 	WLVIF_FLAG_PSPOLL_FAILURE,
 	WLVIF_FLAG_CS_PROGRESS,
 	WLVIF_FLAG_AP_PROBE_RESP_SET,
+	WLVIF_FLAG_IN_USE,
 };
 
 struct wl1271_link {