target/i386/mshv: Implement mshv_arch_put_registers() Write CPU register state to MSHV vCPUs. Various mapping functions to prepare the payload for the HV call have been implemented. Signed-off-by: Magnus Kulke <magnuskulke@linux.microsoft.com> Link: https://lore.kernel.org/r/20250916164847.77883-17-magnuskulke@linux.microsoft.com [mshv.h/mshv_int.h split. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>