Merge projects/bhyve_svm into HEAD.
After this change bhyve supports AMD processors with the SVM/AMD-V hardware
extensions.
More details available here:
https://lists.freebsd.org/pipermail/freebsd-virtualization/2014-October/002905.html
Submitted by: Anish Gupta (akgupt3@gmail.com)
Tested by: Benjamin Perrault (ben.perrault@gmail.com)
Tested by: Willem Jan Withagen (wjw@digiware.nl)