Fixed STM32 USB Device support for mbed Classic#4248

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adbridge merged 1 commit intoARMmbed:masterfrom

screamerbg:fix/stm32-usb-support

May 5, 2017

Commits on Apr 28, 2017

Fixed STM32 USB Device support by migrating all specific target headers to unsupported features where they belong until USB support is officially introduced in mbed OS 5
screamerbg
committed