KVM: ia64: Generate offset values for assembly code use

asm-offsets.c will generate offset values used for assembly code
for some fileds of special structures.

Signed-off-by: Anthony Xu <anthony.xu@intel.com>
Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>