!6 20201201 add yaml file

From: @zhang__3125
Reviewed-by: @dwl301
Signed-off-by: @dwl301

lightdm.spec

@@ -7,7 +7,7 @@
 Name:		lightdm
 Summary:	A cross-desktop Display Manager
 Version:	1.30.0
-Release:	7
+Release:	8
 
 # library/bindings are LGPLv2 or LGPLv3, the rest GPLv3+
 License:	(LGPLv2 or LGPLv3) and GPLv3+
@@ -63,7 +63,7 @@ BuildRequires:	vala
 Requires:	%{name}-gobject%{?_isa} = %{version}-%{release}
 Requires:	accountsservice
 Requires:	dbus-x11
-%if 0%{?fedora} || 0%{?rhel} >= 7
+%if 0%{?openEuler} 
 Requires:	polkit-js-engine
 %endif
 Requires:	systemd