qtnfmac: decrease default Tx queue size

Avoid extra buffering in driver by default. Use max hardware Tx queue size.
Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/quantenna/qtnfmac/pearl/pcie.c

@@ -36,7 +36,7 @@ static bool use_msi = true;
 module_param(use_msi, bool, 0644);
 MODULE_PARM_DESC(use_msi, "set 0 to use legacy interrupt");
 
-static unsigned int tx_bd_size_param = 256;
+static unsigned int tx_bd_size_param = 32;
 module_param(tx_bd_size_param, uint, 0644);
 MODULE_PARM_DESC(tx_bd_size_param, "Tx descriptors queue size");