[bazel] Add missing errno deps one more time

Author: rnk

utils/bazel/llvm-project-overlay/libc/test/UnitTest/BUILD.bazel

@@ -81,6 +81,7 @@ libc_test_library(
     ],
     deps = [
         ":LibcUnitTest",
+        "//libc:__support_libc_errno",
         "//libc:__support_macros_config",
         "//libc:errno",
     ],

utils/bazel/llvm-project-overlay/libc/test/src/stdlib/BUILD.bazel

@@ -204,6 +204,7 @@ libc_test_library(
         "//libc:__support_cpp_limits",
         "//libc:__support_cpp_type_traits",
         "//libc:__support_ctype_utils",
+        "//libc:__support_libc_errno",
         "//libc:__support_macros_properties_architectures",
         "//libc:errno",
         "//libc/test/UnitTest:LibcUnitTest",