[NFC] Fix typos 'seperate' -> 'separate' (#144368)

Correct few typos: 'seperate' -> 'separate' .

Author: GameRoMan

mlir/lib/Bindings/Python/IRAttributes.cpp

@@ -1125,7 +1125,7 @@ class PyDenseElementsAttribute
         bulkLoadElementType = mlirF16TypeGet(context);
       } else if (format == "?") {
         // i1
-        // The i1 type needs to be bit-packed, so we will handle it seperately
+        // The i1 type needs to be bit-packed, so we will handle it separately
         return getBitpackedAttributeFromBooleanBuffer(view, explicitShape,
                                                       context);
       } else if (isSignedIntegerFormat(format)) {

mlir/tools/mlir-tblgen/EnumsGen.cpp

@@ -222,7 +222,7 @@ inline ::llvm::raw_ostream &operator<<(::llvm::raw_ostream &p, {0} value) {{
         llvm::StringSwitch<StringRef>(separator.trim())
             .Case("|", "parseOptionalVerticalBar")
             .Case(",", "parseOptionalComma")
-            .Default("error, enum seperator must be '|' or ','");
+            .Default("error, enum separator must be '|' or ','");
     os << formatv(parsedAndPrinterStartUnquotedBitEnum, qualName, cppNamespace,
                   enumInfo.getSummary(), casesList, separator,
                   parseSeparatorFn);