xiaomi: Add common markdown for Xiaomi SM8250 devices

Change-Id: Ic001a75a64dc289ddafd1be2f0bb0f9df4d21d22
diff --git a/_xiaomi/xiaomi-sm8250-common.markdown b/_xiaomi/xiaomi-sm8250-common.markdown
new file mode 100644
index 0000000..30d1871
--- /dev/null
+++ b/_xiaomi/xiaomi-sm8250-common.markdown
@@ -0,0 +1,19 @@
+{% include disclaimer.html %}
+
+{% include supportstatus.html %}
+
+{% include avb.html %}
+
+{% include dynamicpartitions.html %}
+
+{% include xiaomiunlock.html %}
+
+{% include appinstall.html %}
+
+{% include download.html %}
+
+{% include twrpinstall.html %}
+
+{% include fastbootinstall.html %}
+
+{% include ddinstall.html %}