tests: Rename uasyncio to asyncio.

This work was funded through GitHub Sponsors.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

tests/extmod/asyncio_new_event_loop.py

@@ -0,0 +1,33 @@
+# Test Loop.new_event_loop()
+
+try:
+    import asyncio
+except ImportError:
+    print("SKIP")
+    raise SystemExit
+
+
+async def task():
+    for i in range(4):
+        print("task", i)
+        await asyncio.sleep(0)
+        await asyncio.sleep(0)
+
+
+async def main():
+    print("start")
+    loop.create_task(task())
+    await asyncio.sleep(0)
+    print("stop")
+    loop.stop()
+
+
+# Use default event loop to run some tasks
+loop = asyncio.get_event_loop()
+loop.create_task(main())
+loop.run_forever()
+
+# Create new event loop, old one should not keep running
+loop = asyncio.new_event_loop()
+loop.create_task(main())
+loop.run_forever()