aes/sha: fixed driver reseting the wrong GDMA channel

Driver was using the channel ID from tx when reseting rx.
But since rx and tx is not necessarily from the same pair this could lead
to the driver reseting the wrong DMA channel.

components/mbedtls/port/crypto_shared_gdma/esp_crypto_shared_gdma.c

@@ -128,7 +128,7 @@ esp_err_t esp_crypto_shared_gdma_start(const lldesc_t *input, const lldesc_t *ou
     }
 
     /* tx channel is reset by gdma_connect(), also reset rx to ensure a known state */
-    gdma_get_channel_id(tx_channel, &rx_ch_id);
+    gdma_get_channel_id(rx_channel, &rx_ch_id);
     gdma_ll_rx_reset_channel(&GDMA, rx_ch_id);
 
     gdma_start(tx_channel, (intptr_t)input);