[clang] [flang] [llvm] add -floop-fuse to clang and flang (PR #142686)

[Ryotaro Kasuga via llvm-commits]

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@@ -32,6 +32,9 @@ page](https://llvm.org/releases/).
 
 ## New Compiler Flags
 
+* -floop-interchange is now recognized by flang.
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kasuga-fj wrote:

Seems a mistake while resolving the conflict.

https://github.com/llvm/llvm-project/pull/142686