hil: enable nanoch32v203 in CI with fsdev + usbfs variants (#3707)

* hil: enable nanoch32v203 in CI with fsdev + usbfs variants
nanoch32v203 was parked in boards-skip; move it into the active pool now
that the board is wired to the ci.lan rig. Cover both USB device IPs as
build variants:
  - nanoch32v203-fsdev: RHPORT_DEVICE=0 (USBD / stm32 FSDev IP)
  - nanoch32v203-usbfs: RHPORT_DEVICE=1 (WCH USBFS IP)

test/hil/tinyusb.json

@@ -458,6 +458,25 @@
                 "name": "stlink",
                 "uid": "0668FF575457657187061314"
             }
+        },
+        {
+            "name": "nanoch32v203",
+            "uid": "CDAB277B0FBC03E339E339E3",
+            "toolchain": "riscv-gcc",
+            "variant": [
+                {"name": "nanoch32v203-fsdev", "defines": ["RHPORT_DEVICE=0"]},
+                {"name": "nanoch32v203-usbfs", "defines": ["RHPORT_DEVICE=1"]}
+            ],
+            "tests": {
+                "device": true,
+                "host": false,
+                "dual": false
+            },
+            "flasher": {
+                "name": "openocd_wch",
+                "uid": "EBCA8F0670AF",
+                "args": ""
+            }
         }
     ],
     "boards-skip": [
@@ -478,20 +497,6 @@
                 "uid": "000778170924",
                 "args": "-device stm32f769ni"
             }
-        },
-        {
-            "name": "nanoch32v203",
-            "uid": "CDAB277B0FBC03E339E339E3",
-            "tests": {
-                "device": true,
-                "host": false,
-                "dual": false
-            },
-            "flasher": {
-                "name": "openocd_wch",
-                "uid": "EBCA8F0670AF",
-                "args": ""
-            }
         }
     ]
 }