added patch to depot tools

depot_tools.diff

@@ -1,5 +1,4 @@
 diff --git a/gclient_scm.py b/gclient_scm.py
-index 8a3410a8..f94af977 100644
 --- a/gclient_scm.py
 +++ b/gclient_scm.py
 @@ -1012,28 +1012,35 @@ class GitWrapper(SCMWrapper):

prepare-build.sh

@@ -19,6 +19,12 @@ echo -e ${RED} -------- lastest version is: $VERSION ${NC}
 
 cd ..
 git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git
+
+# apply patchs
+cd depot_tools/
+git apply ../bromite-buildtools/depot_tools.diff
+cd ..
+
 PATH=$PWD/chromium/src/third_party/llvm-build/Release+Asserts/bin:$PWD/depot_tools/:/usr/local/go/bin:$PATH
 
 env