docs: ABI: cleanup several ABI documents

There are some ABI documents that, while they don't generate
any warnings, they have issues when parsed by script
on its output result.

Address them, in order to provide a clean output.

Reviewed-by: Tom Rix <> # for fpga-manager
Reviewed-By: Kajol Jain<> # for sysfs-bus-event_source-devices-hv_gpci and sysfs-bus-event_source-devices-hv_24x7
Acked-by: Jonathan Cameron <> #for IIO
Acked-by: Oded Gabbay <> # for Habanalabs
Acked-by: Vaibhav Jain <> # for sysfs-bus-papr-pmem
Acked-by: Cezary Rojewski <> # for catpt
Acked-by: Suzuki K Poulose <>
Acked-by: Ilya Dryomov <> # for rbd
Acked-by: Jonathan Corbet <>
Signed-off-by: Mauro Carvalho Chehab <>
Signed-off-by: Greg Kroah-Hartman <>
126 files changed