Fix compiler error with JIT when Zicsr is disabled

When using 'make ENABLE_Zicsr=0 ENABLE_JIT=1', the following error is
observed:

src/jit.c:1760:17: error: ‘do_csrrwi’ defined but not used [-Werror=unused-function]
 1760 |     static void do_##inst(struct jit_state *state UNUSED, riscv_t *rv UNUSED, \
      |                 ^~~
src/rv32_jit.c:363:1: note: in expansion of macro ‘GEN’
  363 | GEN(csrrwi, {assert(NULL);
      | ^~~

This ensures csrrwi instructions are properly excluded from JIT code
generation when the Zicsr extension is disabled.

Author: eleanorLYJ

tools/gen-jit-template.py

@@ -15,7 +15,7 @@
         "csrrw",
         "csrrs",
         "csrrc",
-        "csrrw",
+        "csrrwi",
         "csrrsi",
         "csrrci"],
     "EXT_M": [