The previous tightening went too far on nangate45/bp_fe_top

./designs/nangate45/bp_fe_top/
| Metric                                        | Old      | New      | Type     |
| ------                                        | ---      | ---      | ----     |
| finish__timing__drv__hold_violation_count     |      309 |     1792 | Failing  |

Signed-off-by: Matt Liberty <[email protected]>

Author: maliberty

flow/designs/nangate45/bp_fe_top/rules-base.json

@@ -60,7 +60,7 @@
         "compare": "<="
     },
     "finish__timing__drv__hold_violation_count": {
-        "value": 309,
+        "value": 1792,
         "compare": "<="
     },
     "finish__timing__wns_percent_delay": {