PPC/s390: fix Generate_DeserializeLazy to use ip for tail call

Fix lazy deserialization. ip needs to be the address of the calling
function

R=joransiu@ca.ibm.com, jbarboza@ca.ibm.com, michael_dawson@ca.ibm.com

Bug: 
Change-Id: I0852d12328f9a0585c38afa5e121b8b4116520dc
Reviewed-on: https://chromium-review.googlesource.com/726420Reviewed-by: Joran Siu <joransiu@ca.ibm.com>
Commit-Queue: Junliang Yan <jyan@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#48704}

src/builtins/ppc/builtins-ppc.cc

@@ -1433,7 +1433,8 @@ void Builtins::Generate_DeserializeLazy(MacroAssembler* masm) {
 
     __ addi(target_builtin, target_builtin,
             Operand(Code::kHeaderSize - kHeapObjectTag));
-    __ Jump(target_builtin);
+    __ mr(ip, target_builtin);
+    __ Jump(ip);
   }
 
   __ bind(&deserialize_in_runtime);

src/builtins/s390/builtins-s390.cc

@@ -1429,7 +1429,8 @@ void Builtins::Generate_DeserializeLazy(MacroAssembler* masm) {
 
     __ AddP(target_builtin, target_builtin,
             Operand(Code::kHeaderSize - kHeapObjectTag));
-    __ Jump(target_builtin);
+    __ LoadRR(ip, target_builtin);
+    __ Jump(ip);
   }
 
   __ bind(&deserialize_in_runtime);