[WHY]
Roll back previous change to stop passing this value by default, instead
add a debug flag to override to previous behaviour (or force HostVM calcs)
Reviewed-by: NNicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: NTom Chung <chiahsuan.chung@amd.com>
Signed-off-by: NMichael Strauss <michael.strauss@amd.com>
Tested-by: NDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>