ath5k: Stop PCU on reset

 * Stop PCU receive logic (DRU) durring reset
 We need to be sure pcu is not active when trying to stop rx dma
 right now this is done on ath5k_reset (base.c) but later we are
 going to clean it up.
Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath5k/reset.c

@@ -822,6 +822,11 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum nl80211_iftype op_mode,
 	freq = 0;
 	mode = 0;
 
+	/*
+	 * Stop PCU
+	 */
+	ath5k_hw_stop_rx_pcu(ah);
+
 	/*
 	 * Stop DMA
 	 *