Temporarily skip test_asyncio to workaround bpo-35998

https://bugs.python.org/issue35998

python3.spec

@@ -1024,6 +1024,8 @@ CheckPython() {
   #   https://bugzilla.redhat.com/show_bug.cgi?id=1196181
   # test_gdb skipped on s390x:
   #   https://bugzilla.redhat.com/show_bug.cgi?id=1678277
+  # test_asyncio skipped:
+  #   https://bugs.python.org/issue35998
   WITHIN_PYTHON_RPM_BUILD= \
   LD_LIBRARY_PATH=$ConfDir $ConfDir/python -m test.regrtest \
     -wW --slowest -j0 \
@@ -1035,6 +1037,7 @@ CheckPython() {
     %ifarch %{mips64}
     -x test_ctypes \
     %endif
+    -x test_asyncio \
 
   echo FINISHED: CHECKING OF PYTHON FOR CONFIGURATION: $ConfName