reset: qcom-aoss: Allow CONFIG_RESET_QCOM_AOSS to be a tristate

Allow CONFIG_RESET_QCOM_AOSS to be set as as =m to allow for the
driver to be loaded from a modules.

Also replaces the builtin_platform_driver() line with
module_platform_driver() and adds a MODULE_DEVICE_TABLE() entry.

Cc: Todd Kjos <[e-mail]>
Cc: Alistair Delva <[e-mail]>
Cc: Amit Pundir <[e-mail]>
Signed-off-by: John Stultz <[e-mail]>
Reviewed-by: Bjorn Andersson <[e-mail]>
Signed-off-by: Philipp Zabel <[e-mail]>

drivers/reset/Kconfig

···
 	  This enables the reset driver for ImgTec Pistachio SoCs.
 
 config RESET_QCOM_AOSS
-	bool "Qcom AOSS Reset Driver"
+	tristate "Qcom AOSS Reset Driver"
 	depends on ARCH_QCOM || COMPILE_TEST
 	help
 	  This enables the AOSS (always on subsystem) reset driver

drivers/reset/reset-qcom-aoss.c

···
 	{ .compatible = "qcom,sdm845-aoss-cc", .data = &sdm845_aoss_desc },
 	{}
 };
+MODULE_DEVICE_TABLE(of, qcom_aoss_reset_of_match);
 
 static struct platform_driver qcom_aoss_reset_driver = {
 	.probe = qcom_aoss_reset_probe,
···
 	},
 };
 
-builtin_platform_driver(qcom_aoss_reset_driver);
+module_platform_driver(qcom_aoss_reset_driver);
 
 MODULE_DESCRIPTION("Qualcomm AOSS Reset Driver");
 MODULE_LICENSE("GPL v2");