sysutils/uefi-edk2-bhyve: Update to 0.1

Changes this release:

• Linux kernels >= 4.15 will now boot properly in bhyve
• Includes a CSM/BIOS bugfix from Illumos

PR: 227765
Submitted by: Fabian Freyer <fabian.freyer@physik.tu-berlin.de> (maintainer)
Approved by: grehan
Differential Revision: https://reviews.freebsd.org/D15180