editors/libreoffice: Fix build with QT5 on i386
Fix these errors by adding -Wno-c++11-narrowing:
/wrkdirs/usr/ports/editors/libreoffice/work/libreoffice-7.4.0.3/vcl/unx/generic/window/salframe.cxx:650:39: error: non-constant-expression cannot be narrowed from type 'unsigned int' to 'tools::Long' (aka 'long') in initializer list [-Wc++11-narrowing] maGeometry.setPosSize({ x, y }, { w, h }); ^
Approved by: office (fluffy), tcberner (mentor)