dev-qt/qt-creator: add plugins/fix build for 9999
New plugins Boot2Qt [1] and Chrome Trace Format Visualizer [2].
1. https://code.qt.io/cgit/qt-creator/qt-creator.git/commit/?id=
5942b824
2. https://code.qt.io/cgit/qt-creator/qt-creator.git/commit/?id=
7fec4182
Reported-by: Manuel Nickschas <sputnick@quassel-irc.org>
Closes: https://github.com/gentoo/gentoo/pull/13036
Package-Manager: Portage-2.3.76, Repoman-2.3.17
Signed-off-by: Jimi Huotari <chiitoo@gentoo.org>
Signed-off-by: Davide Pesavento <pesa@gentoo.org>