Accepting request 1114285 from home:favogt:branches:Base:System

- Add BuildIgnore to break cycle with the branding package

OBS-URL: https://build.opensuse.org/request/show/1114285
OBS-URL: https://build.opensuse.org/package/show/Base:System/grub2?expand=0&rev=465

grub2.spec

@@ -157,6 +157,9 @@ BuildRequires:  update-bootloader-rpm-macros
 %endif
 
 %ifarch %{efi}
+# The branding package requires grub2. It's not necessary here,
+# so break the dep to avoid a cycle.
+#!BuildIgnore: grub2
 BuildRequires:  grub2-branding
 BuildRequires:  squashfs
 %endif