soc: combine xxx_caps.h into one soc_caps.h

During HAL layer refactoring and new chip bringup, we have several
caps.h for each part, to reduce the conflicts to minimum. But this is
The capabilities headers will be relataive stable once completely
written (maybe after the featues are supported by drivers).

Now ESP32 and ESP32-S2 drivers are relative stable, making it a good
time to combine all these caps.h into one soc_caps.h

This cleanup also move HAL config and pin config into separated files,
to make the responsibilities of these headers more clear. This is
helpful for the stabilities of soc_caps.h because we want to make it
public some day.

components/driver/include/driver/uart.h

@@ -20,6 +20,7 @@ extern "C" {
 
 #include "esp_err.h"
 #include "esp_intr_alloc.h"
+#include "soc/soc_caps.h"
 #include "freertos/FreeRTOS.h"
 #include "freertos/semphr.h"
 #include "freertos/xtensa_api.h"
@@ -27,7 +28,6 @@ extern "C" {
 #include "freertos/queue.h"
 #include "freertos/ringbuf.h"
 #include "hal/uart_types.h"
-#include "soc/uart_caps.h"
 
 // Valid UART port number
 #define UART_NUM_0             (0) /*!< UART port 0 */
@@ -39,6 +39,9 @@ extern "C" {
 
 #define UART_PIN_NO_CHANGE      (-1)         /*!< Constant for uart_set_pin function which indicates that UART pin should not be changed */
 
+#define UART_FIFO_LEN           SOC_UART_FIFO_LEN       ///< Length of the UART HW FIFO
+#define UART_BITRATE_MAX        SOC_UART_BITRATE_MAX    ///< Maximum configurable bitrate
+
 /**
  * @brief UART interrupt configuration parameters for uart_intr_config function
  */
@@ -224,7 +227,7 @@ esp_err_t uart_get_baudrate(uart_port_t uart_num, uint32_t* baudrate);
  * @brief Set UART line inverse mode
  *
  * @param uart_num  UART port number, the max port number is (UART_NUM_MAX -1).
- * @param inverse_mask Choose the wires that need to be inverted. Using the ORred mask of `uart_signal_inv_t` 
+ * @param inverse_mask Choose the wires that need to be inverted. Using the ORred mask of `uart_signal_inv_t`
  *
  * @return
  *     - ESP_OK   Success