[bazel] Add missing dep from DwarfLinkerParallel to Object

llvm-dwarfutil now builds successfully with Bazel.

Author: rnk

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

@@ -2797,6 +2797,7 @@ cc_library(
         ":DWARFLinker",
         ":DebugInfoDWARF",
         ":MC",
+        ":Object",
         ":Support",
         ":Target",
         ":TargetParser",