drm/xe/pmu: Assert max gt

XE_PMU_MAX_GT needs to be used due to a circular dependency, but we
should make sure it doesn't go out of sync with XE_PMU_MAX_GT. Add a
compile check for that.

Reviewed-by: Rodrigo Vivi <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]
Signed-off-by: Lucas De Marchi <[e-mail]>

drivers/gpu/drm/xe/xe_pmu.c

···
 	int ret = -ENOMEM;
 	char *name;
 
+	BUILD_BUG_ON(XE_MAX_GT_PER_TILE != XE_PMU_MAX_GT);
+
 	if (IS_SRIOV_VF(xe))
 		return 0;