Create non-public target for Cypress boards with externally-stored WiFi firmware

Targets that inherit from this target will have the defines necessary to
place the WiFi firmware in external storage and enable use of the
external WiFi firmware reserved region block device.
Currently, the only target inheriting from this new target is
CY8CPROTO-062S3-4343W.

storage/kvstore/kv_config/filesystem/mbed_lib.json

@@ -37,6 +37,9 @@
     "target_overrides": {
         "MCU_PSOC6": {
             "rbp_internal_size": "7168"
+        },
+        "CY_EXTERNAL_WIFI_FW": {
+            "blockdevice": "other"
         }
     }
 }

storage/kvstore/kv_config/filesystem_no_rbp/mbed_lib.json

@@ -25,5 +25,10 @@
             "help": "Path for the working directory where the FileSystemStore stores the data",
             "value": "kvstore"
         }
+    },
+    "target_overrides": {
+        "CY_EXTERNAL_WIFI_FW": {
+            "blockdevice": "other"
+        }
     }
 }

storage/kvstore/kv_config/tdb_external/mbed_lib.json

@@ -25,6 +25,9 @@
     "target_overrides": {
         "MCU_PSOC6": {
             "rbp_internal_size": "7168"
+        },
+        "CY_EXTERNAL_WIFI_FW": {
+            "blockdevice": "other"
         }
     }
 }

storage/kvstore/kv_config/tdb_external_no_rbp/mbed_lib.json

@@ -13,5 +13,10 @@
             "help": "The default will set start address to address 0",
             "value": "0"
         }
+    },
+    "target_overrides": {
+        "CY_EXTERNAL_WIFI_FW": {
+            "blockdevice": "other"
+        }
     }
 }

targets/targets.json

@@ -6520,6 +6520,15 @@
             "full", "bare-metal"
         ]
     },
+    "CY_EXTERNAL_WIFI_FW": {
+        "public": false,
+        "macros_add": [
+            "CY_ENABLE_XIP_PROGRAM",
+            "CY_STORAGE_WIFI_DATA=\".cy_xip\"",
+            "CY_STORAGE_WIFI_DATA_OUTPUT=cy_xip",
+            "CY_EXT_WIFI_FW_STORAGE=QSPIF"
+        ]
+    },
     "CY8CPROTO_062_4343W": {
         "inherits": [
             "MCU_PSOC6_M4"
@@ -6600,7 +6609,8 @@
     },
     "CY8CPROTO_062S3_4343W": {
         "inherits": [
-            "MCU_PSOC6_M4"
+            "MCU_PSOC6_M4",
+            "CY_EXTERNAL_WIFI_FW"
         ],
         "features": [
             "BLE"
@@ -6610,9 +6620,6 @@
             "4343W",
             "CYW43XXX"
         ],
-        "components_remove": [
-            "QSPIF"
-        ],
         "device_has_remove": [
             "ANALOGOUT"
         ],
@@ -6623,9 +6630,7 @@
         ],
         "macros_add": [
             "CY8C6245LQI_S3D72",
-            "CYBSP_WIFI_CAPABLE",
-            "CY_ENABLE_XIP_PROGRAM",
-            "CY_STORAGE_WIFI_DATA=\".cy_xip\""
+            "CYBSP_WIFI_CAPABLE"
         ],
         "device_name": "CY8C6245LQI-S3D72",
         "mbed_ram_start": "0x08002000",
@@ -6634,8 +6639,7 @@
             "190E"
         ],
         "overrides": {
-            "network-default-interface-type": "WIFI",
-            "xip-enable": true
+            "network-default-interface-type": "WIFI"
         }
     },
     "CY8CKIT_062_WIFI_BT": {