make cmake usage match new autobuild package name

indra/cmake/LLAppearanceUtility.cmake

@@ -4,7 +4,7 @@ include(Prebuilt)
 # Linux proprietary build only
 if (INSTALL_PROPRIETARY)
     if(LINUX)
-        use_prebuilt_binary(llappearanceutility-source)
+        use_prebuilt_binary(llappearanceutility_utility)
         set(LLAPPEARANCEUTILITY_SRC_DIR ${LIBS_PREBUILT_DIR}/llappearanceutility/src)
         set(LLAPPEARANCEUTILITY_BIN_DIR ${CMAKE_BINARY_DIR}/llappearanceutility)
     endif (LINUX)