tools/xen-mceinj: Pass in GPA when injecting through MSR_MCI_ADDR

tools/xen-mceinj: Pass in GPA when injecting through MSR_MCI_ADDR

This patch removes the address translation in xen-mceinj which
translates the guest physical address passed-in through the argument of
'-p' to the host machine address. Instead, xen-mceinj now passes a flag
MC_MSRINJ_F_GPADDR to ask do_mca() in the hypervisor to do this
translation.

Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Christoph Egger <chegger@amazon.de>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>