Update upr manifest to match master manifest

In the master manifest moxi was moved into the cmake
directory [1][2], update the upr manifest accordingly.

[1] http://review.couchbase.org/32329
[2] https://github.com/couchbase/manifest/commit/263d22280f4da1ea01a8388486ff35d520f16162

Change-Id: I52ac0851de6183968a265bfce586ba3ae1707812
Reviewed-on: http://review.couchbase.org/32599
Reviewed-by: Michael Wiederhold <mike@couchbase.com>
Reviewed-by: Filipe David Borba Manana <fdmanana@gmail.com>
Tested-by: Volker Mische <volker.mische@gmail.com>