[Qemu-devel] usb: split packet result into actual_length + status v3

[Hans de Goede]

Here is v3 of the split packet result into actual_length + status patchset.

Changes in v2:
As requested this version makes sb_handle_packet and
the device's handle_control and handle_data methods return void, to
make the sync/async packet handling more alike.

Changes in v3:
-Rebased on latest usb-next tree
-Added a patch to change how combined packets are freed, based on review
 comments

Regards,

Hans