driver core: class: fix block class problem when removing CONFIG_SYSFS_DEPRECATED*

driver core: class: fix block class problem when removing CONFIG_SYSFS_DEPRECATED*

In removing the CONFIG_SYSFS_DEPRECATED and CONFIG_SYSFS_DEPRECATED_V2
config options, I messed up in the __class_register() function and got
the logic incorrect.  Fix this all up by just removing the special case
of a block device class logic in this function, as that is what is
intended.

In testing, this solves the boot problem on my systems, hopefully on
others as well.

Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: 721da5cee9d4 ("driver core: remove CONFIG_SYSFS_DEPRECATED and CONFIG_SYSFS_DEPRECATED_V2")
Link: https://lore.kernel.org/r/20230307075102.3537-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>