add LPC1549, add FRDM-KL46Z, fix epComplete bit operation.

Dependents:   XBee-ExplorerLite USBLocalFileSystem USB-to-UART-bridge USBLocalFileSystem

Fork of USBDevice by mbed official

Revision:
6:d0945750af57
Parent:
4:eaa07ce86d49
Child:
23:554b76408e69