staging: rtl8192u: Using comparison to true is error prone

clear below issues reported by checkpatch.pl:

CHECK: Using comparison to false is error prone
Signed-off-by: John Oldman <john.oldman@polehill.co.uk>
Link: https://lore.kernel.org/r/20200706162240.2770-1-john.oldman@polehill.co.ukSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192u/r8192U_dm.c

@@ -2240,7 +2240,7 @@ static void dm_ctstoself(struct net_device *dev)
 	unsigned long						curTxOkCnt = 0;
 	unsigned long						curRxOkCnt = 0;
 
-	if (priv->ieee80211->bCTSToSelfEnable != true) {
+	if (!priv->ieee80211->bCTSToSelfEnable) {
 		pHTInfo->IOTAction &= ~HT_IOT_ACT_FORCED_CTS2SELF;
 		return;
 	}
@@ -2944,7 +2944,7 @@ static void dm_dynamic_txpower(struct net_device *dev)
 	unsigned int txhipower_threshold = 0;
 	unsigned int txlowpower_threshold = 0;
 
-	if (priv->ieee80211->bdynamic_txpower_enable != true) {
+	if (!priv->ieee80211->bdynamic_txpower_enable) {
 		priv->bDynamicTxHighPower = false;
 		priv->bDynamicTxLowPower = false;
 		return;