[Feature]add MT2731_MP2_MR2_SVN388 baseline version

Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/prebuilt/firmware/spmfw/mt2731/verName b/prebuilt/firmware/spmfw/mt2731/verName
new file mode 100644
index 0000000..d4453b7
--- /dev/null
+++ b/prebuilt/firmware/spmfw/mt2731/verName
@@ -0,0 +1 @@
+Version : pcm_suspend_20191025_V1.93