class: Add DB845C class to support new board

New kernel package in,

https://obs.linaro.org/package/show/linaro-overlay-buster/linux-5.1.0-qcomlt-arm64

Change-Id: I9e45708e506f1e006e005edea9cac524910d3b30
Signed-off-by: Aníbal Limón <anibal.limon@linaro.org>
diff --git a/class/DB845C.var b/class/DB845C.var
new file mode 100644
index 0000000..05d49d0
--- /dev/null
+++ b/class/DB845C.var
@@ -0,0 +1,2 @@
+KVERS=5.1.0-qcomlt-arm64
+fdtfile=qcom/sdm845-db845c.dtb