[llvm] [X86][MC] Support case insenstive for `dfv, sf, cf, of, zf`. (PR #95910)

[Shengchen Kan via llvm-commits]

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@@ -1208,3 +1208,9 @@
 # CHECK: ccmpe {dfv=of} r15, r9
 # CHECK: encoding: [0x62,0x54,0xc4,0x04,0x39,0xcf]
          ccmpe {dfv=of} r15, r9
+
+## Case Sensitive
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KanRobert wrote:

ditto

https://github.com/llvm/llvm-project/pull/95910