Add explicit llvm-libs dep for polly and mlir

This is to avoid rpminspect rpmdeps failures like this:

> Subpackage polly on i686 carries 'Requires: libLLVM.so.19.1' which comes from subpackage llvm-libs but does not carry an explicit package version requirement. Please add 'Requires: llvm-libs = %{version}-%{release}' to the spec file to avoid the need to test interoperability between various combinations of old and new subpackages.

Author: nikic

llvm.spec

@@ -854,6 +854,7 @@ The package contains the LLDB Python module.
 Summary:	Multi-Level Intermediate Representation Overview
 License:	Apache-2.0 WITH LLVM-exception
 URL:		http://mlir.llvm.org
+Requires: %{pkg_name_llvm}-libs = %{version}-%{release}
 
 %description -n %{pkg_name_mlir}
 The MLIR project is a novel approach to building reusable and extensible
@@ -987,6 +988,7 @@ execution profile gathered by sampling profiler, such as Linux `perf` tool.
 Summary:	LLVM Framework for High-Level Loop and Data-Locality Optimizations
 License:	Apache-2.0 WITH LLVM-exception
 URL:	http://polly.llvm.org
+Requires: %{pkg_name_llvm}-libs = %{version}-%{release}
 
 # We no longer ship polly-doc.
 Obsoletes: %{pkg_name_polly}-doc < 20