Add lzop.

Change-Id: I2f2d8576095fd6fbfa631e87bd748a0997e10d20
diff --git a/default.xml b/default.xml
index 4308b0a..f8a83d7 100644
--- a/default.xml
+++ b/default.xml
@@ -99,6 +99,7 @@
   <project path="external/libweave" name="platform/external/libweave" groups="bdk" />
   <project path="external/llvm" name="platform/external/llvm" groups="bdk" />
   <project path="external/lzma" name="platform/external/lzma" groups="bdk" />
+  <project path="external/lzop" name="platform/external/lzop" groups="bdk" />
   <project path="external/minijail" name="platform/external/minijail" groups="bdk" />
   <project path="external/mksh" name="platform/external/mksh" groups="bdk" />
   <project path="external/modp_b64" name="platform/external/modp_b64" groups="bdk" />