feat: add profiled DualSense PCM haptics experiment

tests/haptics_transport_probe_native_stubs/sdk.cpp

@@ -0,0 +1,19 @@
+#include <btstack.h>
+#include <cyw43.h>
+
+extern int (*native_write)(uint8_t*, size_t);
+extern int (*native_read)(uint8_t*, uint32_t, uint32_t*);
+extern void (*native_poll)();
+
+// Keep definitions separate from test callers, just like the real SDK. Tests
+// exercise GNU ld --wrap, not direct calls to the __wrap_ implementation.
+extern "C" int cyw43_bluetooth_hci_write(uint8_t* buffer, size_t length) {
+    return native_write(buffer, length);
+}
+extern "C" int cyw43_bluetooth_hci_read(uint8_t* buffer, uint32_t capacity,
+                                       uint32_t* length) {
+    return native_read(buffer, capacity, length);
+}
+extern "C" void btstack_run_loop_base_poll_data_sources() {
+    native_poll();
+}