drm/xe/oa: Disallow 0 OA property values

drm/xe/oa: Disallow 0 OA property values

An OA property value of 0 is invalid and will cause a NPD.

Reported-by: Peter Senna Tschudin <peter.senna@linux.intel.com>
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/6452
Fixes: cc4e6994d5a2 ("drm/xe/oa: Move functions up so they can be reused for config ioctl")
Cc: stable@vger.kernel.org
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Reviewed-by: Harish Chegondi <harish.chegondi@intel.com>
Link: https://patch.msgid.link/20251212061850.1565459-3-ashutosh.dixit@intel.com
(cherry picked from commit 7a100e6ddcc47c1f6ba7a19402de86ce24790621)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>