fix the conditional to skip packaging fwupd-detect-cet when building with clang

(cherry picked from commit e875944f3736e8119adb0d200305c057548726ed)

fwupd.spec

@@ -43,7 +43,7 @@
 
 Name:      fwupd
 Version:   1.8.17
-Release:   2
+Release:   3
 License:   LGPLv2+
 Summary:   Make updating firmware on Linux automatic, safe and reliable
 URL:       https://github.com/fwupd/fwupd
@@ -343,7 +343,7 @@ done
 %{_libexecdir}/fwupd/fwupd
 # depending on compiler behavior
 # currently skipped from building if compiled by llvm
-%if "%toolchain" == "llvm"
+%if "%toolchain" == "clang"
 %else
 %ifarch i686 x86_64
 %{_libexecdir}/fwupd/fwupd-detect-cet
@@ -471,6 +471,9 @@ done
 %{_datadir}/man/man1/*
 
 %changelog
+* Wed Mar 13 2024 jchzhou <zhoujiacheng@iscas.ac.cn> - 1.8.17-3
+- Fix the conditional at L346: replace expected toolchain value to 'clang'
+
 * Wed Mar 13 2024 panchenbo <panchenbo@kylinsec.com.cn> - 1.8.17-2
 - modify openEuler to %{_vendor}