Port NXP LPC15xx

[hathach]

Description
Port LPCXpresso1549, it has the same usb controller as lpc11uxx and lpc13xx

[hathach]

Device connect and able to receive setup packet and ACK. However, setup packet is all-zeroes, something is not right with USB DMA SRAM.

USBD: event SETUP_RECEIVED                                                                                                              
  000:  00 00 00 00 00 00 00 00                         | ........                                                                      
  Get Status                                                                                                                            
  XFER Endpoint: 0x80, Bytes: 0