Disallow use of error-prone merge-strategies am: 86c4c55d81

Original change: https://android-review.googlesource.com/c/platform/packages/modules/SdkExtensions/+/1602053

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I9bb65fe0c79a1fa0a0e27c9cc51d0aa1d1b6c9bc
diff --git a/PREUPLOAD.cfg b/PREUPLOAD.cfg
index 65c2b62..c0ddf19 100644
--- a/PREUPLOAD.cfg
+++ b/PREUPLOAD.cfg
@@ -5,3 +5,6 @@
 
 [Builtin Hooks Options]
 clang_format = --commit ${PREUPLOAD_COMMIT} --style file --extensions c,h,cc,cpp
+
+[Hook Scripts]
+do_not_use_DO_NOT_MERGE = ${REPO_ROOT}/build/soong/scripts/check_do_not_merge.sh ${PREUPLOAD_COMMIT}