drivers: video: ctrls: correct assertion in video_cluster_ctrl

The function asserted `!sz && !ctrls`, which is the inverse of the
intended precondition. This caused assertion failures on valid inputs.

Update the check to `sz && ctrls` so it fails only when size is zero
or the control pointer is NULL.

Signed-off-by: Khanh Nguyen <[email protected]>

Author: KhanhNguyen-RVC

drivers/video/video_ctrls.c

@@ -236,7 +236,7 @@ void video_cluster_ctrl(struct video_ctrl *ctrls, uint8_t sz)
 {
 	bool has_volatiles = false;
 
-	__ASSERT(!sz && !ctrls, "The 1st control, i.e. the primary control, must not be NULL");
+	__ASSERT(sz && ctrls, "The 1st control, i.e. the primary control, must not be NULL");
 
 	for (uint8_t i = 0; i < sz; i++) {
 		ctrls[i].cluster_sz = sz;