rt2x00: rt2800lib: fix VGC adjustment for RT5592

In commit 3d81535e
(rt2800: 5592: add chip specific vgc calculations)
the rt2800_link_tuner function has been modified to
adjust VGC level for the RT5592 chipset.

On the RT5592 chipset, the VGC level must be adjusted
only if rssi is greater than -65. However the current
code adjusts the VGC value by 0x10 regardless of the
actual chipset if the rssi value is between -80 and
-65.

Fix the broken behaviour by reordering the if-else
statements.

Cc: stable@vger.kernel.org
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rt2x00/rt2800lib.c

@@ -4478,10 +4478,13 @@ void rt2800_link_tuner(struct rt2x00_dev *rt2x00dev, struct link_qual *qual,
 
 	vgc = rt2800_get_default_vgc(rt2x00dev);
 
-	if (rt2x00_rt(rt2x00dev, RT5592) && qual->rssi > -65)
+	if (rt2x00_rt(rt2x00dev, RT5592)) {
+		if (qual->rssi > -65)
 			vgc += 0x20;
-	else if (qual->rssi > -80)
+	} else {
+		if (qual->rssi > -80)
 			vgc += 0x10;
+	}
 
 	rt2800_set_vgc(rt2x00dev, qual, vgc);
 }