The util_sync_reset peripheral hasn't been used in a while and will not be
used in new projects. So remove it.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
This helper module can be used to make sure that a reset signal is de-asserted
synchronously to a clock signal. This is e.g. required by the AXI spec.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>