[AE-664] Add Provide tag for libhdfs to resolve yum dependency check

The major point of this is to add the Provide tag for libhdfs since it doesn't exist, and for 3rd party application such as Impala or others may require this as part of the RPM. By adding these to the fpm command, we will be able to install impala via yum and pull in the dependent RPM without manually running rpm commands.
The --provides takes just random strings right? Or do these strings mean anything? Why is there a '()' before '(64-bit)'