esp_i2s: fix I2S RX DMA path for ESP32-S3

Fix multiple bugs in the I2S RX receive path on ESP32-S3 with GDMA:

- Set streaming=true in i2s_rxdma_start so completed buffers are not
  incorrectly marked AUDIO_APB_FINAL
- Restore up_enable_irq calls for DMA interrupt after esp_dma_load
  resets the channel
- Skip i2s_hal_rx_reset/rx_reset_fifo on ESP32-S3 which clears the
  TDM slot configuration set by i2s_configure
- Accept 1-16 RX channels on ESP32-S3 (was limited to 2)
- Add getreg32 read-back after DMA start to flush CPU write buffer
- Auto-stop RX channel when no pending buffers remain, preventing
  hardware from running without DMA descriptors after stop
- Remove duplicate return OK in i2s_rxdma_start
- Fix i2s_ll_tx_enable_mono_mode to i2s_ll_rx_enable_mono_mode in
  i2s_rxchannels
- Fix tx_slot_cfg.std to rx_slot_cfg.std in RX PCM slot config
- Fix DMA direction, peripheral ID, data_width, rx_start sequencing,
  and rx_eof_num word count in RX path
- Fix esp32s3_board_i2s.c I2S port index

Signed-off-by: wangjianyu3 <wangjianyu3@xiaomi.com>

Author: JianyuWang0623