[bazel][mlir] Port llvm#158722: complex.powi op (llvm#159691)

Author: rupprecht

utils/bazel/llvm-project-overlay/mlir/BUILD.bazel

@@ -12177,6 +12177,7 @@ cc_library(
     ]),
     includes = ["include"],
     deps = [
+        ":ArithDialect",
         ":ComplexDialect",
         ":ConversionPassIncGen",
         ":FuncDialect",
@@ -12525,6 +12526,7 @@ cc_library(
     deps = [
         ":ArithDialect",
         ":ArithUtils",
+        ":ComplexDialect",
         ":DialectUtils",
         ":IR",
         ":MathDialect",