[llvm][mlir][bazel] Fix build.

Author: olegshyshkov

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

@@ -8000,6 +8000,7 @@ cc_library(
         "//llvm:Core",
         "//llvm:FrontendOpenMP",
         "//llvm:Support",
+        "//llvm:TransformUtils",
     ],
 )
 

utils/bazel/llvm-project-overlay/third-party/unittest/BUILD.bazel

@@ -52,6 +52,7 @@ cc_library(
     ) + [
     ],
     hdrs = [
+        "googletest/include/gtest/internal/gtest-port.h",
         "googletest/include/gtest/gtest.h",
         "googletest/include/gtest/gtest-spi.h",
     ],