docs: ABI: testing: Document the SBEFIFO timeout interface

Add documentation for the new sysfs entry that indicates whether or not
the SBE has timed out.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/20211019211749.38059-2-eajames@linux.ibm.com
Signed-off-by: Joel Stanley <joel@jms.id.au>
This commit is contained in:
Eddie James 2021-10-19 16:17:48 -05:00 • committed by Joel Stanley
commit 9a93de620e