ASoC: wcd_cpe_core: Fix snprintf size

techpack/audio/asoc/codecs/wcd_cpe_core.c:1981:2: error: 'snprintf' size argument is too large; destination buffer has size 11, but size argument is 13 [-Werror,-Wfortify-source]
        snprintf(proc_name, (sizeof("cpe") + sizeof("_state") +
        ^
1 error generated.

Change-Id: I976c005263f44d7a97f1496304acf28df30232a1

techpack/audio/asoc/codecs/wcd_cpe_core.c

@@ -1978,8 +1978,8 @@ struct wcd_cpe_core *wcd_cpe_init(const char *img_fname,
 	}
 
 	card = codec->component.card->snd_card;
-	snprintf(proc_name, (sizeof("cpe") + sizeof("_state") +
-		 sizeof(id) - 2), "%s%d%s", cpe_name, id, state_name);
+	snprintf(proc_name, WCD_CPE_STATE_MAX_LEN,
+		 "%s%d%s", cpe_name, id, state_name);
 	entry = snd_info_create_card_entry(card, proc_name,
 					   card->proc_root);
 	if (entry) {