Recreate STM32F439ZITx sector information

Author: theotherjimmy

tools/arm_pack_manager/index.json

@@ -363950,7 +363950,40 @@
                 "units": 1
             }
         }, 
-        "sectors": null, 
+        "sectors": [
+            [
+                134217728, 
+                16384
+            ], 
+            [
+                134283264, 
+                65536
+            ], 
+            [
+                134348800, 
+                131072
+            ], 
+            [
+                135266304, 
+                16384
+            ], 
+            [
+                135331840, 
+                65536
+            ], 
+            [
+                135397376, 
+                131072
+            ], 
+            [
+                536836096, 
+                528
+            ], 
+            [
+                536854528, 
+                8
+            ]
+        ], 
         "vendor": "STMicroelectronics:13"
     }, 
     "STM32F439ZIYx": {