Disable the bug_307 test only on platform where it fails

OBS-URL: https://build.opensuse.org/package/show/KDE:Qt5/python3-pyside2?expand=0&rev=53

python3-pyside2.spec

@@ -135,11 +135,14 @@ Examples and Tutorials for the PySide2 bindings for Qt.
 %if "%{_lib}" == "lib64"
 %patch0 -p1
 %endif
+
 # Test expects depth of 32
 printf '[QtGui::qdatastream_gui_operators_test]\n  linux\n' >> build_history/blacklist.txt
 
 # bug_307 fails on armv7l only
+%ifarch %{arm}
 printf '[QtWidgets::bug_307]\n  linux\n' >> build_history/blacklist.txt
+%endif
 
 %build
 export LLVM_INSTALL_DIR=%{_prefix}