pinctrl: aw9523: Add proper terminator

The of_device_id array needs to be terminated with a NULL
entry.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202403061147.85XYVsk3-lkp@intel.com/
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240306-fix-aw9523-terminator-v1-1-13f90f87a7f6@linaro.org

drivers/pinctrl/pinctrl-aw9523.c

@@ -1099,6 +1099,7 @@ MODULE_DEVICE_TABLE(i2c, aw9523_i2c_id_table);
 
 static const struct of_device_id of_aw9523_i2c_match[] = {
 	{ .compatible = "awinic,aw9523-pinctrl", },
+	{ }
 };
 MODULE_DEVICE_TABLE(of, of_aw9523_i2c_match);