cc3200 wifi library SmartConfig bug

when we use startSmartConfig function from wifi library.it will crash after init function. review the WiFi.cpp code . we found some bug at the code.  fix the code  below.

-    if(sl_WlanPolicySet(SL_POLICY_CONNECTION,
-        SL_CONNECTION_POLICY(1,0,0,0,1),
-        &policyVal,
-        1 /*PolicyValLen*/) < 0) return -1;

+    if(sl_WlanPolicySet(SL_POLICY_CONNECTION,SL_CONNECTION_POLICY(1,0,0,0,1),&policyVal,1 ) < 0)  { /*PolicyValLen*/
+      return -1;

-    if(sl_WlanPolicySet(SL_POLICY_CONNECTION,
-        SL_CONNECTION_POLICY(1,0,0,0,0),
-        &policyVal,
-        1 /*PolicyValLen*/) < 0) return -1;

+    if(sl_WlanPolicySet(SL_POLICY_CONNECTION,SL_CONNECTION_POLICY(1,0,0,0,0),&policyVal,1) < 0) {  /*PolicyValLen*/
+       return -1;
+    }