Add lk-bootloader deb package.

Change-Id: I63e7a20750a2cb17a459578d9596aa2c4c2d2c26
diff --git a/excelsior.xml b/excelsior.xml
index 943cf21..0eb6815 100644
--- a/excelsior.xml
+++ b/excelsior.xml
@@ -37,6 +37,8 @@
     <!-- BEGIN mtk packages repos -->
     <project remote="excelsior" path="packages/u-boot-mkimage"
       name="excelsior-mendel/packages/u-boot-mkimage" />
+    <project remote="excelsior" path="packages/lk-bootloader"
+      name="excelsior-mendel/packages/lk-bootloader" />
     <!-- END mtk packages repos -->
 
     <!-- END Excelsior specfic repos -->