seL4_libs: disable upload checks

Add PREUPLOAD.cfg as this repo is a fork of upstream and we do not
enforce our coding style.

Change-Id: I245dbd1cfff881abc3e0936a697163c4cd44b727

PREUPLOAD.cfg

diff --git a/PREUPLOAD.cfg b/PREUPLOAD.cfg
new file mode 100644
index 0000000..8deda18
--- /dev/null
+++ b/PREUPLOAD.cfg
@@ -0,0 +1,13 @@
+# Per-project `repo upload` hook settings.
+# https://android.googlesource.com/platform/tools/repohooks
+
+[Options]
+ignore_merged_commits = true
+
+[Builtin Hooks]
+cpplint = false
+pylint3 = false
+clang_format = false
+
+[Hook Scripts]
+yapf-diff = ${REPO_ROOT}/scripts/preupload-hooks/yapf-diff.sh --bypass