Added rename sign files

SPECS/kernel-6.1.spec

@@ -1094,6 +1094,12 @@ BuildKernel() {
    # Red Hat IMA code-signing cert, which is used to authenticate package files
    install -m 0644 %{ima_signing_cert} $RPM_BUILD_ROOT%{_datadir}/doc/%{name}-keys/%{ima_cert_name}
    
+   %if %{signmodules}
+   # Save the signing keys so that we can sign the modules in __modsign_install_post.
+   cp certs/signing_key.pem certs/signing_key.pem.sign${Variant:++${Variant}}
+   cp certs/signing_key.x509 certs/signing_key.x509.sign${Variant:++${Variant}}
+   %endif
+   
    %endif 
 
    ### BCAT