sysutils/bhyvemgr: Update to 1.1.0

• Add aarch64 support on 15-CURRENT (OSVERSION >= 1500000)
• Add FREERDP3 OPTION. net/freerdp3 is not a mandatory dependency
• Few other modifications

ChangeLog at: https://github.com/alonsobsd/bhyvemgr/compare/v1.0.1...v1.1.0