xen: Add aarch64 as compatible host
xen: Add aarch64 as compatible host

Signed-off-by: Nathan Rossi <e1e6d173c6873c0ae2b831215d22380d293bb314@xilinx.com>

cjp256/meta-virtualization,fbertux/meta-virtualization,cardoe/meta-virtualization,fbertux/meta-virtualization,lgirdk/meta-virtualization,cjp256/meta-virtualization,cardoe/meta-virtualization,lgirdk/meta-virtualization,cardoe/meta-virtualization,rcwoolley/meta-virtualization,cjp256/meta-virtualization,lgirdk/meta-virtualization,fbertux/meta-virtualization,lgirdk/meta-virtualization,lgirdk/meta-virtualization