Merge pull request #2740 from jeffng-or/at-asap7-ibex-updates

asap7 ibex AutoTuner & metrics updates

Author: maliberty

flow/designs/asap7/ibex/autotuner.json

@@ -3,7 +3,7 @@
     "_SDC_CLK_PERIOD": {
         "type": "float",
         "minmax": [
-            1800,
+            1200,
             2000
         ],
         "step": 0
@@ -35,16 +35,16 @@
     "CELL_PAD_IN_SITES_GLOBAL_PLACEMENT": {
         "type": "int",
         "minmax": [
-            3,
-            5
+            0,
+            3
         ],
         "step": 1
     },
     "CELL_PAD_IN_SITES_DETAIL_PLACEMENT": {
         "type": "int",
         "minmax": [
-            3,
-            5
+            0,
+            3
         ],
         "step": 1
     },
@@ -60,7 +60,7 @@
         "type": "float",
         "minmax": [
             0.0,
-            0.1
+            0.2
         ],
         "step": 0
     },