When hotplug memory on arm64 in kata, kernel will shout:
[ 0.396551] Block size [0x40000000] unaligned hotplug range: start 0xc8000000, size 0x40000000
[ 0.396556] acpi PNP0C80:01: add_memory failed
[ 0.396834] acpi PNP0C80:01: acpi_memory_enable_device() error
[ 0.396948] acpi PNP0C80:01: Enumeration failure
It means that kernel will check if the memory range to be hotplugged
align with 1G before plug the memory. So we should twist the qemu to
make sure the memory range align with 1G to pass the kernel check.
Fixes: #1841
Signed-off-by: Yuanzhe Liu <yuanzheliu09@gmail.com>
