Add UMIDIGI One Max

Add all jekyll layouts to add new oem with device markdown.

Signed-off-by: chankruze <chankruze@gmail.com>
Change-Id: I42a24131e1fb9003a9ff774c0e23803d5a425feb
diff --git a/_oem/umidigi.markdown b/_oem/umidigi.markdown
new file mode 100644
index 0000000..735bac0
--- /dev/null
+++ b/_oem/umidigi.markdown
@@ -0,0 +1,4 @@
+---
+layout: device
+oem: Umidigi
+---
\ No newline at end of file