ABI: sysfs-class-rc-nuvoton: use wildcards on What definitions

An "N" upper letter is not a wildcard, nor can easily be identified
by script, specially since the USB sysfs define things like.
bNumInterfaces. Use, instead, <N>, in order to let script/get_abi.pl
to convert it into a Regex.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/8cfb786e625bfe8f1c73837cf76107af187c9d85.1631782432.git.mchehab+huawei@kernel.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Documentation/ABI/testing/sysfs-class-rc-nuvoton

-What:		/sys/class/rc/rcN/wakeup_data
+What:		/sys/class/rc/rc<N>/wakeup_data
 Date:		Mar 2016
 KernelVersion:	4.6
 Contact:	Mauro Carvalho Chehab <mchehab+samsung@kernel.org>