devices: Add support for Nokia 8 (NB1)

Also add Nokia to OEM list

Change-Id: I377ebc05fc750f3dea689333c9a9a987eaaddf6c
Signed-off-by: dg28gadhavi <dg28gadhavi@gmail.com>
diff --git a/_oem/nokia.markdown b/_oem/nokia.markdown
new file mode 100644
index 0000000..74687b3
--- /dev/null
+++ b/_oem/nokia.markdown
@@ -0,0 +1,4 @@
+---
+layout: device
+oem: Nokia
+---