[Feature] add GA346 baseline version

Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/CleanSpec.mk b/src/kernel/linux/v4.19/CleanSpec.mk
new file mode 100644
index 0000000..6e9e3d0
--- /dev/null
+++ b/src/kernel/linux/v4.19/CleanSpec.mk
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2019 MediaTek Inc.
+
+# dummy file
+# To avoid scanning kernel when using findleaves.py to search CleanSpec.mk