Add partitions to RP2350.

Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>

config/rp2350/pt.json

@@ -0,0 +1,38 @@
+{
+  "version": [1, 0],
+  "unpartitioned": {
+    "families": ["absolute"],
+    "permissions": {
+      "secure": "rw",
+      "nonsecure": "rw",
+      "bootloader": "rw"
+    }
+  },
+  "partitions": [
+    {
+      "name": "Pico Keys Firmware",
+      "id": 0,
+      "size": "1024K",
+      "families": ["rp2350-arm-s", "rp2350-riscv"],
+      "permissions": {
+        "secure": "rw",
+        "nonsecure": "rw",
+        "bootloader": "rw"
+      }
+    },
+    {
+      "name": "Pico Keys Data",
+      "id": 1,
+      "size": "3072K",
+      "families": ["data"],
+      "permissions": {
+        "secure": "rw",
+        "nonsecure": "rw",
+        "bootloader": "rw"
+      },
+      "link": ["owner", 0],
+      "ignored_during_arm_boot": true,
+      "ignored_during_riscv_boot": true
+    }
+  ]
+}