fix(rmt): use memset to clear entire RMT memory block instead of single word

closes #17692

Author: Kainarx

components/esp_driver_rmt/src/rmt_tx.c

@@ -833,7 +833,7 @@ static esp_err_t rmt_tx_disable(rmt_channel_handle_t channel)
 #if !SOC_RMT_SUPPORT_ASYNC_STOP
         // we do a trick to stop the undergoing transmission
         // stop interrupt, insert EOF marker to the RMT memory, polling the trans_done event
-        channel->hw_mem_base[0].val = 0;
+        memset(channel->hw_mem_base, 0, channel->mem_block_num * SOC_RMT_MEM_WORDS_PER_CHANNEL * sizeof(rmt_symbol_word_t));
         while (!(rmt_ll_tx_get_interrupt_status_raw(hal->regs, channel_id) & RMT_LL_EVENT_TX_DONE(channel_id))) {}
 #endif
         rmt_ll_clear_interrupt_status(hal->regs, RMT_LL_EVENT_TX_MASK(channel_id));