Fix regiser usage in prologue

Summary: The usage of w1 here is clobbering the first arg in the static method case. Switches to using the scratch register.

Reviewed By: yoney

Differential Revision: D93780247

fbshipit-source-id: e84c7030db3070447abdff7ce73a4d6ed6a8b89d

Author: DinoV

cinderx/Jit/codegen/frame_asm.cpp

@@ -753,9 +753,9 @@ void FrameAsm::linkLightWeightFunctionFrame(
 
   // Store owner
   asmjit::BaseNode* store_owner_cursor = as_->cursor();
-  as_->mov(a64::w1, FRAME_OWNED_BY_THREAD);
+  as_->mov(a64::w(arch::reg_scratch_0.id()), FRAME_OWNED_BY_THREAD);
   as_->strb(
-      a64::w1,
+      a64::w(arch::reg_scratch_0.id()),
       arch::ptr_resolve(
           as_,
           arch::fp,