[build] Fix deps path of dsymutil

TBR=yangguo@chromium.org

Change-Id: Ieb6f9da0cd15c65ed0537ecbc3a3c032ac6bbbf7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1507672Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60081}

DEPS

@@ -111,7 +111,7 @@ deps = {
       'condition': 'host_cpu != "s390"',
       'dep_type': 'cipd',
   },
-  'src/tools/clang/dsymutil': {
+  'v8/tools/clang/dsymutil': {
     'packages': [
       {
         'package': 'chromium/llvm-build-tools/dsymutil',