[RyuJIT/ARM32] Fix assertion in 'unreached' when using emitIns_R_L (#11486)

* [RyuJIT/ARM32] Fix assertion in 'unreached'

Now, All of CodeGenBringUpTests have failed.

message : Assertion failed 'unreached' in 'DomainNeutralILStubClass:IL_STUB_PInvoke(ref)'

I found the problem was caused by #11377 that 'genCodeForTreeNode' merged to codegenarmarch.cpp.

Author: sjsinju

src/jit/codegenarmarch.cpp

@@ -343,7 +343,11 @@ void CodeGen::genCodeForTreeNode(GenTreePtr treeNode)
         case GT_LABEL:
             genPendingCallLabel       = genCreateTempLabel();
             treeNode->gtLabel.gtLabBB = genPendingCallLabel;
+#if defined(_TARGET_ARM_)
+            emit->emitIns_J_R(INS_adr, EA_PTRSIZE, genPendingCallLabel, targetReg);
+#elif defined(_TARGET_ARM64_)
             emit->emitIns_R_L(INS_adr, EA_PTRSIZE, genPendingCallLabel, targetReg);
+#endif
             break;
 
         case GT_STORE_OBJ: