Added warning when -geom is used on x86 systems
Added warning when -geom is used on x86 systems

- it is only supported on Tilera

smarr/OmniVM,smarr/OmniVM,smarr/OmniVM,smarr/OmniVM,smarr/OmniVM,smarr/OmniVM,smarr/OmniVM,smarr/OmniVM