select uclibc test for test appliance as it is no longer default on

target/appliances/test.appliance

@@ -3,6 +3,8 @@ config ADK_APPLIANCE_TEST
 	select ADK_PACKAGE_ADKTEST
 	select ADK_RUNTIME_START_SERVICES
 	select ADK_RUNTIME_START_ADKTEST
+	select ADK_UCLIBC_TEST if ADK_TARGET_LIB_UCLIBC
+	select ADK_UCLIBC_TEST if ADK_TARGET_LIB_UCLIBC_NG
 	help
 	  Create a small appliance for automatic testing.