uhu: Bump to ef7ff7c revision
uhu: Bump to ef7ff7c revision

This bump includes following changes:

045e0c1 updatehub: fixes bug when uploading package objects
67d17d5 updatehub: removed unnecessary ObjectUploadResult method
6bc611a updatehub: removed unused function read_stream from http
cfe7104 updatehub: added timeout for all requests
e097298 updatehub: increased http module test coverage

Signed-off-by: Otavio Salvador <1d31b11c1b92bf5d043d36edfe7174db39a6b891@ossystems.com.br>

fbertux/meta-updatehub,UpdateHub/meta-updatehub,UpdateHub/meta-updatehub,fbertux/meta-updatehub,fbertux/meta-updatehub,UpdateHub/meta-updatehub