contrib: yaml-cpp minimal version to be 0.5.3

Add a version check for yaml-cpp in contrib to use 0.5.3 at minimal
version. Some distributions uses an old and buggy version.

Change-Id: I7a9356f403f035853dc89a74232d9f830d791bbb
Reviewed-by: Philippe Gorley <philippe.gorley@savoirfairelinux.com>

contrib/src/yaml-cpp/rules.mak

@@ -4,7 +4,7 @@ YAML_CPP_URL := https://github.com/jbeder/yaml-cpp/archive/$(YAML_CPP_VERSION).t
 
 PKGS += yaml-cpp
 
-ifeq ($(call need_pkg,'yaml-cpp'),)
+ifeq ($(call need_pkg,'yaml-cpp >= 0.5.3'),)
 PKGS_FOUND += yaml-cpp
 endif