libusbdrivers: Use ps_malloc_ops;

libusbdrivers: Use delay function from libplatsupport.

libusbdrivers: Remove duplicated aborts.

libusbdrivers: Minor fixes.

libusbdrivers: Move various functions to other libraries.

libusbdrivers: Move synchronization structure to libplatsupport.

libusbdrivers: Add licence headers.

libusbdrivers: Replace all assertions and debug macros with ZF_LOG.

libusbdrivers: Use the colour code define in utils/ansi.h

libusbdrivers: Cleanup code.

libusbdrivers: Use less ambiguous locking interface.

libusbdrivers: Make the CDC read a non-blocking operation and buffer the
incoming data in the CDC device structure.

libusbdrivers: Added mutex functions to the APIs.

libusbdrivers: Change APIs, introduce the endpoint structure.

libusbdrivers: Add support for x86.

libusbdrivers: Add new xact scheduling functions.

Fix licenses