Revert "reset: microchip-sparx5: allow building as a module"

This reverts commit b6b9585876da018bdde2d5f15d206a689c0d70f3.

This breaks MDIO on kswitch-d10, presumably because the global switch
reset is not released early enough anymore.

Reported-by: Michael Walle <[e-mail]>
Cc: Clément Léger <[e-mail]>
Signed-off-by: Philipp Zabel <[e-mail]>
Tested-by: Michael Walle <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

drivers/reset/Kconfig

···
 	  This enables the reset controller driver for NXP LPC18xx/43xx SoCs.
 
 config RESET_MCHP_SPARX5
-	tristate "Microchip Sparx5 reset driver"
+	bool "Microchip Sparx5 reset driver"
 	depends on ARCH_SPARX5 || SOC_LAN966 || COMPILE_TEST
 	default y if SPARX5_SWITCH
 	select MFD_SYSCON

drivers/reset/reset-microchip-sparx5.c

···
 	},
 	{ }
 };
-MODULE_DEVICE_TABLE(of, mchp_sparx5_reset_of_match);
 
 static struct platform_driver mchp_sparx5_reset_driver = {
 	.probe = mchp_sparx5_reset_probe,
···
 	},
 };
 
-module_platform_driver(mchp_sparx5_reset_driver);
+static int __init mchp_sparx5_reset_init(void)
+{
+	return platform_driver_register(&mchp_sparx5_reset_driver);
+}
+
+postcore_initcall(mchp_sparx5_reset_init);
 
 MODULE_DESCRIPTION("Microchip Sparx5 switch reset driver");
 MODULE_AUTHOR("Steen Hegelund <[e-mail]>");