drm/xe/guc: Fix include guard for SR-IOV ABI

Use include guard macro name that follows naming used by the other
GuC ABI files.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240213214908.1481-1-michal.wajdeczko@intel.com