mt76: mt7915: drop the use of repeater entries for station interfaces

There are firmware or hardware issues, which are currently causing tx hangs
when attempting to use these interfaces
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7915/main.c

@@ -139,12 +139,6 @@ static int get_omac_idx(enum nl80211_iftype type, u64 mask)
 		if (type != NL80211_IFTYPE_STATION)
 			break;
 
-		/* next, try to find a free repeater entry for the sta */
-		i = get_free_idx(mask >> REPEATER_BSSID_START, 0,
-				 REPEATER_BSSID_MAX - REPEATER_BSSID_START);
-		if (i)
-			return i + 32 - 1;
-
 		i = get_free_idx(mask, EXT_BSSID_1, EXT_BSSID_MAX);
 		if (i)
 			return i - 1;

drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h

@@ -9,7 +9,7 @@
 #include "../mt76.h"
 #include "regs.h"
 
-#define MT7915_MAX_INTERFACES		32
+#define MT7915_MAX_INTERFACES		19
 #define MT7915_MAX_WMM_SETS		4
 #define MT7915_WTBL_SIZE		288
 #define MT7915_WTBL_RESERVED		(MT7915_WTBL_SIZE - 1)