target-ppc: Use PowerPCCPU in PowerPCCPUClass::handle_mmu_fault hook

Signed-off-by: Andreas Färber <afaerber@suse.de>
diff --git a/target-ppc/mmu_helper.c b/target-ppc/mmu_helper.c
index 2a94f3d..c75b4f2 100644
--- a/target-ppc/mmu_helper.c
+++ b/target-ppc/mmu_helper.c
@@ -2902,7 +2902,7 @@
     int ret;
 
     if (pcc->handle_mmu_fault) {
-        ret = pcc->handle_mmu_fault(env, addr, is_write, mmu_idx);
+        ret = pcc->handle_mmu_fault(cpu, addr, is_write, mmu_idx);
     } else {
         ret = cpu_ppc_handle_mmu_fault(env, addr, is_write, mmu_idx);
     }