[arm64] Use literal pool for calls to off-heap targets

Cherry-picked from cd285951 for arm64 only, with a small addition.

Change-Id: I864f811e7fe5cb47390e6a0588b48d057ccb6292
Reviewed-on: https://chromium-review.googlesource.com/1240334Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Georgia Kouveli <georgia.kouveli@arm.com>
Cr-Commit-Position: refs/heads/master@{#56194}

src/arm64/macro-assembler-arm64.cc

@@ -1727,7 +1727,7 @@ void MacroAssembler::JumpToExternalReference(const ExternalReference& builtin,
 }
 
 void MacroAssembler::JumpToInstructionStream(Address entry) {
-  Mov(kOffHeapTrampolineRegister, Operand(entry, RelocInfo::OFF_HEAP_TARGET));
+  Ldr(kOffHeapTrampolineRegister, Operand(entry, RelocInfo::OFF_HEAP_TARGET));
   Br(kOffHeapTrampolineRegister);
 }
 
@@ -1905,7 +1905,7 @@ void TurboAssembler::Jump(Handle<Code> code, RelocInfo::Mode rmode,
         Register scratch = temps.AcquireX();
         EmbeddedData d = EmbeddedData::FromBlob();
         Address entry = d.InstructionStartOfBuiltin(builtin_index);
-        Mov(scratch, Operand(entry, RelocInfo::OFF_HEAP_TARGET));
+        Ldr(scratch, Operand(entry, RelocInfo::OFF_HEAP_TARGET));
         Jump(scratch, cond);
         return;
       }
@@ -1963,7 +1963,7 @@ void TurboAssembler::Call(Handle<Code> code, RelocInfo::Mode rmode) {
         Register scratch = temps.AcquireX();
         EmbeddedData d = EmbeddedData::FromBlob();
         Address entry = d.InstructionStartOfBuiltin(builtin_index);
-        Mov(scratch, Operand(entry, RelocInfo::OFF_HEAP_TARGET));
+        Ldr(scratch, Operand(entry, RelocInfo::OFF_HEAP_TARGET));
         Call(scratch);
         return;
       }