waf: update submodule

Cherry-pick the upstream commit:

f556c6e "Add commit() method to ConfigSet"

That will be used for transactionally loading compiler-specific tools for
cross-compilation configuration.
This commit is contained in:
Gustavo Jose de Sousa 2016-03-23 12:38:25 -03:00 committed by Lucas De Marchi
parent e33812e1cb
commit dbd27a9f39

2
modules/waf vendored

@ -1 +1 @@
Subproject commit b6874e139ad8428710b03c02ab487c219170e878 Subproject commit 7dee3bdb8f30398621dd3764f969903b1bc68850