[bitcoin/bitcoin] [0.16] depends: fix qt determinism (#14005)

Backport for rc2
You can view, comment on, or merge this pull request online at:

https://github.com/bitcoin/bitcoin/pull/14005

— Commit Summary —

* depends: fix qt determinism

— File Changes —

M depends/packages/qt.mk (5)
A depends/patches/qt/xkb-default.patch (26)

— Patch Links —

https://github.com/bitcoin/bitcoin/pull/14005.patch
https://github.com/bitcoin/bitcoin/pull/14005.diff