[prim] Pulse Sync assertion to check input/output
[prim] Pulse Sync assertion to check input/output

Adding assertion to check the pulse is being generated
correctly.

Co-Authored-by: Timothy Chen <d7b2ae30d8c0f215facd721941273067fd1d14a2@google.com>
Signed-off-by: Eunchan Kim <cb7bc7ceb22698f298c67faa994fd9ddf3cab298@opentitan.org>

lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan