[llvm] [SDAG] Heed enableAggressiveFMAFusion when folding fma(a,b,c*d)+e (PR #94209)

[Matt Arsenault via llvm-commits]

https://github.com/arsenm commented:

In a separate patch does the visitFSUBForFMACombine need a similar update? 

https://github.com/llvm/llvm-project/pull/94209