Allow to set segue flags for wasm-c-api JIT (#2926)

Add an API to set segue flags for wasm-c-api LLVM JIT mode:
```C
wasm_config_t *
wasm_config_set_segue_flags(wasm_config_t *config, uint32 segue_flags);
```

core/iwasm/common/wasm_runtime_common.h

@@ -438,7 +438,7 @@ typedef struct wasm_frame_t {
     const char *func_name_wp;
 } WASMCApiFrame;
 
-#ifdef WASM_ENABLE_JIT
+#if WASM_ENABLE_JIT != 0
 typedef struct LLVMJITOptions {
     uint32 opt_level;
     uint32 size_level;