hwmon: (occ) OCC sensors aren't arch-specific

Commit c112d75840fb ("hwmon: OCC drivers are ARM-only") made the OCC
sensor drivers not selectable on powerpc64:

These drivers are for a BMC inside PowerPC servers. The BMC runs on
ARM hardware, so only propose the drivers on this architecture, unless
build-testing.

... but we now have a powerpc64 BMC (still for a powerpc64 host), so
drop the `depends on` that excludes building for this platform.

Signed-off-by: Jeremy Kerr <[e-mail]>
Acked-by: Joel Stanley <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Guenter Roeck <[e-mail]>

drivers/hwmon/occ/Kconfig

···
 config SENSORS_OCC_P8_I2C
 	tristate "POWER8 OCC through I2C"
 	depends on I2C
-	depends on ARM || ARM64 || COMPILE_TEST
 	select SENSORS_OCC
 	help
 	 This option enables support for monitoring sensors provided by the
···
 config SENSORS_OCC_P9_SBE
 	tristate "POWER9 OCC through SBE"
 	depends on FSI_OCC
-	depends on ARM || ARM64 || COMPILE_TEST
 	select SENSORS_OCC
 	help
 	 This option enables support for monitoring sensors provided by the