Advapi32Util.registryGetValues() is more efficient to fetch all the
values since the regiter only needs to be opened once.
XXX: Due to a cycle in the dependencies we need to split this
in two parts, this commit handles the core.native API change
and the next commit handles the use of the new API
Change-Id: Ifd9f1ccc44c652ef3b517278bd342a486155c5fb
Signed-off-by: Torbjörn Svensson <azoff@svenskalinuxforeningen.se>