RZ_A1H: enable bootloader support

targets/targets.json

@@ -5847,7 +5847,10 @@
         "device_has_add": ["USBDEVICE", "EMAC", "FLASH", "LPTICKER"],
         "release_versions": ["2", "5"],
         "device_name": "R7S72100",
-        "bootloader_supported": false
+        "bootloader_supported": true,
+        "mbed_rom_start"        : "0x18000000",
+        "mbed_rom_size"         : "0x800000",
+        "sectors": [[0,4096]]
     },
     "VK_RZ_A1H": {
         "inherits": ["RZ_A1XX"],

tools/arm_pack_manager/index.json

@@ -302969,7 +302969,7 @@
             "version": "1.2.1"
         }, 
         "memories": {
-            "PROGRAM_FLASH": {
+            "IRAM1": {
                 "access": {
                     "execute": true, 
                     "non_secure": false, 
@@ -302977,12 +302977,12 @@
                     "peripheral": false, 
                     "read": true, 
                     "secure": false, 
-                    "write": false
+                    "write": true
                 }, 
                 "default": true, 
-                "size": 8388608, 
-                "start": 402653184, 
-                "startup": true
+                "size": 10485760, 
+                "start": 536870912, 
+                "startup": false
             }
         },
         "name": "R7S72100", 
@@ -302994,12 +302994,7 @@
                 "units": 1
             }
         }, 
-        "sectors": [
-            [
-                0, 
-                4096
-            ]
-        ], 
+        "sectors": [], 
         "sub_family": "RZ_A1H",
         "vendor": "Renesas:117"
     },