Add external/libdaemon and external/avahi repos.

Bug: 22921222
Bug: 22827641

default.xml

@@ -68,6 +68,7 @@
   <project path="external/apache-harmony" name="platform/external/apache-harmony" groups="pdk-cw-fs,pdk-fs" />
   <project path="external/apache-http" name="platform/external/apache-http" groups="pdk" />
   <project path="external/apache-xml" name="platform/external/apache-xml" groups="pdk" />
+  <project path="external/avahi" name="platform/external/avahi"/>
   <project path="external/bison" name="platform/external/bison" groups="pdk" />
   <project path="external/blktrace" name="platform/external/blktrace" groups="pdk-cw-fs,pdk-fs" />
   <project path="external/boringssl" name="platform/external/boringssl" groups="pdk" />
@@ -185,6 +186,7 @@
   <project path="external/libchromeos" name="platform/external/libchromeos" />
   <project path="external/libcxx" name="platform/external/libcxx" groups="pdk" />
   <project path="external/libcxxabi" name="platform/external/libcxxabi" groups="pdk" />
+  <project path="external/libdaemon" name="platform/external/libdaemon"/>
   <project path="external/libedit" name="platform/external/libedit" groups="pdk-fs" />
   <project path="external/libevent" name="platform/external/libevent" />
   <project path="external/libexif" name="platform/external/libexif" groups="pdk-cw-fs,pdk-fs" />