wl18xx: set normal/GEM Tx spare block counts

Initialize the Tx spare block counts for all operating modes in the 18xx
card.
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

drivers/net/wireless/ti/wl18xx/main.c

@@ -32,6 +32,9 @@
 #include "conf.h"
 #include "wl18xx.h"
 
+#define WL18XX_TX_HW_BLOCK_SPARE        1
+#define WL18XX_TX_HW_GEM_BLOCK_SPARE    2
+
 static struct wl18xx_conf wl18xx_default_conf = {
 	.phy = {
 		.phy_standalone			= 0x00,
@@ -326,6 +329,8 @@ int __devinit wl18xx_probe(struct platform_device *pdev)
 	wl->ptable = wl18xx_ptable;
 	wl->rtable = wl18xx_rtable;
 	wl->num_tx_desc = 32;
+	wl->normal_tx_spare = WL18XX_TX_HW_BLOCK_SPARE;
+	wl->gem_tx_spare = WL18XX_TX_HW_GEM_BLOCK_SPARE;
 
 	return wlcore_probe(wl, pdev);
 }