Fix reference to the Framework Search Path

It was setup to search in `"\"$(PODS_ROOT)/Lookback/lookback-#{s.version}/Safe\""`, but should actually be looking in `"\"$(PODS_ROOT)/LookbackSafe/lookback-#{s.version}/Safe\""`. This uses the more generic `#{s.name}` to fix that.

/cc @nevyn
Merge pull request #9818 from streeter/patch-1

Fix reference to the Framework Search Path