enable tests only for x86_64

SPECS/python3.spec

@@ -1497,6 +1497,7 @@ bash -c "strip -p -R .gnu.lto_* -R .gnu.debuglto_* -N __gnu_lto_v1 \"\$@\"" ARG0
 
 %check
 # first of all, check timestamps of bytecode files
+%ifarch x86_64
 find %{buildroot} -type f -a -name "*.py" -print0 | \
     LD_LIBRARY_PATH="%{buildroot}%{dynload_dir}/:%{buildroot}%{_libdir}" \
     PYTHONPATH="%{buildroot}%{_libdir}/python%{pybasever} %{buildroot}%{_libdir}/python%{pybasever}/site-packages" \
@@ -1569,6 +1570,7 @@ CheckPython optimized
 
 %endif # with tests
 
+%endif # ifarch x86_64
 
 %post -n platform-python
 # Default with no /usr/bin/python symlink