[llvm] MIPS: Set EnableLoopTermFold (PR #133378)

[Tom Weaver via llvm-commits]

TomWeaver18 wrote:

My apologies but I've had to revert this change for now due to the ongoing build bot failures:

https://github.com/llvm/llvm-project/commit/af150272cff97c121ed4fdb76fce702fbe2f12a3

https://github.com/llvm/llvm-project/pull/133378