libgusb: update to 0.4.3.

[motorto]

Testing the changes

• I tested the changes in this PR: NO

Local build testing

SUMMARY
pkg:libgusb host:x86_64 target:x86_64 cross:n result:OK
pkg:libgusb host:x86_64-musl target:x86_64-musl cross:n result:OK
pkg:libgusb host:i686 target:i686 cross:n result:OK
pkg:libgusb host:x86_64 target:aarch64-musl cross:y result:OK
pkg:libgusb host:x86_64 target:aarch64 cross:y result:OK
pkg:libgusb host:x86_64 target:armv7l-musl cross:y result:OK
pkg:libgusb host:x86_64 target:armv7l cross:y result:OK
pkg:libgusb host:x86_64 target:armv6l-musl cross:y result:OK
pkg:libgusb host:x86_64 target:armv6l cross:y result:OK