power: reset: ep93xx: add AUXILIARY_BUS dependency

This fails to link when compile-testing and the auxiliary bus is not built-in:

x86_64-linux-ld: drivers/power/reset/ep93xx-restart.o: in function `ep93xx_reboot_driver_init':
ep93xx-restart.c:(.init.text+0x11): undefined reference to `__auxiliary_driver_register'
x86_64-linux-ld: drivers/power/reset/ep93xx-restart.o: in function `ep93xx_reboot_driver_exit':
ep93xx-restart.c:(.exit.text+0x8): undefined reference to `auxiliary_driver_unregister'

Add the appropriate dependency.

Fixes: 9fa7cdb ("power: reset: Add a driver for the ep93xx reset")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20241111104418.3891756-1-arnd@kernel.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

drivers/power/reset/Kconfig

@@ -79,6 +79,7 @@ config POWER_RESET_EP93XX
 	bool "Cirrus EP93XX reset driver" if COMPILE_TEST
 	depends on MFD_SYSCON
 	default ARCH_EP93XX
+	select AUXILIARY_BUS
 	help
 	  This driver provides restart support for Cirrus EP93XX SoC.