target-ppc: fix ppc32 kvm build

My segment sync patch broke compilation on PPC32, because it was trying to
sync the SLB even though ppc32 CPUs don't have an SLB.

So let's only sync it when we're on a PP64 one!
Signed-off-by: NAlexander Graf <agraf@suse.de>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

target-ppc/kvm.c

@@ -135,10 +135,12 @@ int kvm_arch_get_registers(CPUState *env)
         env->sdr1 = sregs.u.s.sdr1;
 
         /* Sync SLB */
+#ifdef TARGET_PPC64
         for (i = 0; i < 64; i++) {
             ppc_store_slb(env, sregs.u.s.ppc64.slb[i].slbe,
                                sregs.u.s.ppc64.slb[i].slbv);
         }
+#endif
 
         /* Sync SRs */
         for (i = 0; i < 16; i++) {