Merge branch '16.0.0' into 'stream-llvm-toolset-rhel8-rhel-8.9.0'

Add llvm-compat

See merge request redhat/centos-stream/modules/llvm-toolset!4

llvm-toolset.yaml

@@ -42,6 +42,11 @@ data:
         multilib: [x86_64]
         ref: stream-llvm-toolset-rhel8-rhel-8.9.0
         buildorder: 0
+      llvm-compat:
+        rationale: LLVM compat libraries
+        multilib: [x86_64]
+        ref: stream-llvm-toolset-rhel8-rhel-8.9.0
+        buildorder: 0
       compiler-rt:
         rationale: LLVM compiler intrinsic and sanitizer libraries 
         multilib: [x86_64]