rt2x00: Fix IEEE80211_HT_CAP_RX_STBC assignment

IEEE80211_HT_CAP_RX_STBC is a 2 bit flag, and should thus
never be set as normal flag. Instead we must read the number
of RX paths from the EEPROM and set the IEEE80211_HT_CAP_RX_STBC
with the correct value (using the same logic as the number of TX
streams).
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rt2x00/rt2800lib.c

@@ -2572,12 +2572,15 @@ int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 	    IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
 	    IEEE80211_HT_CAP_GRN_FLD |
 	    IEEE80211_HT_CAP_SGI_20 |
-	    IEEE80211_HT_CAP_SGI_40 |
-	    IEEE80211_HT_CAP_RX_STBC;
+	    IEEE80211_HT_CAP_SGI_40;
 
 	if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TXPATH) >= 2)
 		spec->ht.cap |= IEEE80211_HT_CAP_TX_STBC;
 
+	spec->ht.cap |=
+	    rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RXPATH) <<
+		IEEE80211_HT_CAP_RX_STBC_SHIFT;
+
 	spec->ht.ampdu_factor = 3;
 	spec->ht.ampdu_density = 4;
 	spec->ht.mcs.tx_params =