Merge branch 'feat/spi_ble_log_improvement' into 'master'

feat(ble): Improved SPI BLE Log functionality

Closes BLERP-1805 and BLERP-1806

See merge request espressif/esp-idf!38600

Author: Isl2017

components/bt/common/Kconfig.in

@@ -93,3 +93,18 @@ config BT_BLE_LOG_SPI_OUT_SYNC_IO_NUM
     default 3
     help
         GPIO number of SYNC IO
+
+config BT_BLE_LOG_SPI_OUT_FLUSH_TIMER_ENABLED
+    bool "Enable periodic buffer flush out"
+    depends on BT_BLE_LOG_SPI_OUT_ENABLED
+    default n
+    help
+        Enable periodic buffer flush out
+        Not recommended when SPI receiver is unavailable
+
+config BT_BLE_LOG_SPI_OUT_FLUSH_TIMEOUT
+    int "Buffer flush out period in unit of ms"
+    depends on BT_BLE_LOG_SPI_OUT_FLUSH_TIMER_ENABLED
+    default 1000
+    help
+        Buffer flush out period in unit of ms