Subject: [PATCH] platform/x86: oxpec: add support for OneXPlayer Super X

Hi,

this patch adds DMI-based support for OneXPlayer Super X to
drivers/platform/x86/oxpec.c.

Why this is needed:

- the tested Super X system exposes DMI strings as `ONE-NETBOOK` /
  `ONEXPLAYER SUPER X`
- current mainline `oxpec` does not match those strings
- as a result, the in-tree driver is not auto-loaded on this machine

What was validated locally on hardware:

- the patched driver matches and loads on OneXPlayer Super X
- the hwmon node appears
- fan RPM becomes readable
- manual PWM control works
- turbo toggle register matches the `OXP_TURBO_SWITCH_REG` path

The tested Super X fan/PWM behaviour does not match the current `oxp_x1`
fan path, so this patch adds a dedicated `oxp_superx` board id instead
of aliasing the system directly to `oxp_x1`.

Battery charge-limit / charge-behaviour on this machine uses the same
0xA3 / 0xA4 EC path that is already used by the X1 family, so the patch
keeps that extension enabled for Super X.

Thanks.
