samples/subsys/usb/hid: Enable for native_sim

Allow this sample in native_sim, and set it as default
integration platform instead of native_posix.

Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>

samples/subsys/usb/hid/sample.yaml

@@ -17,6 +17,8 @@ tests:
     platform_allow:
       - native_posix
       - native_posix_64
+      - native_sim
+      - native_sim_64
     build_only: true
     integration_platforms:
-      - native_posix
+      - native_sim