usbutils uses libusb1 not the older libusb-compat library.
Refresh (and submit upstream) the bashism removal for usb-devices.
Fix LICENSE as lsusb.py is GPLv2 or v3, and set per-package LICENSE fields as
appropriate. The actual license texts are missing from the 010 tarball (fixed
in git) so point at the SPDX statements in the source files instead.
Remove FILES_${PN}-dev as usbutils.pc doesn't exist anymore.
Remove lsusb.py hashbang change as this doesn't cause any problems now
(installed hashbang is /usr/bin/env python3).
Remove spurious zlib build dependency that isn't required.
Remove spurious RDEPENDS_${PN}-ptest, which doesn't exist.
Signed-off-by: Ross Burton <ross.burton@intel.com>
