tcg/mips: Fix regression caused by typo (copy + paste bug)

cppcheck reports an error:
qemu/tcg/mips/tcg-target.c:1487: error: Invalid number of character (()

The unpatched code won't compile on mips hosts starting with commit
cea5f9a2.

Cc: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: NStefan Weil <weil@mail.berlios.de>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

tcg/mips/tcg-target.c

@@ -1484,7 +1484,7 @@ static void tcg_target_qemu_prologue(TCGContext *s)
     }
 
     /* Call generated code */
-    tcg_out_opc_reg(s, OPC_JR, 0, tcg_target_call_iarg_regs[1]), 0);
+    tcg_out_opc_reg(s, OPC_JR, 0, tcg_target_call_iarg_regs[1], 0);
     tcg_out_mov(s, TCG_TYPE_PTR, TCG_AREG0, tcg_target_call_iarg_regs[0]);
     tb_ret_addr = s->code_ptr;