hostapd: ucode: support 320 MHz in freq_info

uc_wpa_freq_info() rejected any operating width above 160 MHz, returning
null for EHT320 (width 3). Add the 320 MHz case; the existing segment-0
centre arithmetic (8 << width / 4 << width) extends correctly to width 3.

Signed-off-by: Felix Fietkau <nbd@nbd.name>

package/network/services/hostapd/src/src/utils/ucode.c

@@ -139,6 +139,9 @@ uc_value_t *uc_wpa_freq_info(uc_vm_t *vm, size_t nargs)
 	case 2:
 		chanwidth = CONF_OPER_CHWIDTH_160MHZ;
 		break;
+	case 3:
+		chanwidth = CONF_OPER_CHWIDTH_320MHZ;
+		break;
 	default:
 		return NULL;
 	}