drm/i915/selftests: fix spelling mistake: "parmaters" -> "parameters"

Trivial fix to spelling mistake in pr_err error message
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Reviewed-by: NChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180503154510.708-1-colin.king@canonical.com

drivers/gpu/drm/i915/selftests/i915_vma.c

@@ -81,7 +81,7 @@ checked_vma_instance(struct drm_i915_gem_object *obj,
 	}
 
 	if (i915_vma_compare(vma, vm, view)) {
-		pr_err("i915_vma_compare failed with create parmaters!\n");
+		pr_err("i915_vma_compare failed with create parameters!\n");
 		return ERR_PTR(-EINVAL);
 	}