Remove blocking option from USB connect

Remove the option to block in USBDevice::connect since this
should be handled at a higher level. Also call init to ensure that
the USBDevice has been initalized.

usb/device/USBDevice/USBDevice.cpp

@@ -994,20 +994,20 @@ bool USBDevice::configured()
     return ret;
 }
 
-void USBDevice::connect(bool blocking)
+void USBDevice::connect()
 {
-    /* Connect device */
     lock();
+
+    /* Ensure device has been initialized */
+    init();
+
+    /* Connect device */
     if (!_connected) {
         _phy->connect();
         _connected = true;
     }
-    unlock();
 
-    if (blocking) {
+    unlock();
-        /* Block if not configured */
-        while (!configured());
-    }
 }
 
 void USBDevice::disconnect()

usb/device/USBDevice/USBDevice.h

@@ -117,10 +117,8 @@ public:
 
     /**
     * Connect a device
-    *
-    * @param blocking: block if not configured
     */
-    void connect(bool blocking = true);
+    void connect();
 
     /**
     * Disconnect a device