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:
19:6dcb8023e437
Parent:
11:eeb3cbbaa996
Child:
23:554b76408e69