refactor(xtensa): Rename specreg.h register macros

This commit renames all registers in xtensa/specreg.h to by adding the
prefix XT_REG_. This is done to avoid naming collisions with similar
variable names. A new register file, viz., xt_specreg.h is created. The
previous names are still available to use but have been deprecated.

Closes https://github.com/espressif/esp-idf/issues/12723
Merges https://github.com/espressif/esp-idf/pull/16040

components/hal/esp32s3/include/hal/dedic_gpio_cpu_ll.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2020-2025 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -8,15 +8,6 @@
 
 #include <stdint.h>
 
-#include "soc/soc_caps.h"
-
-#include "xt_instr_macros.h"
-#include "xtensa/config/specreg.h"
-#include "xtensa/config/extreg.h"
-#include "esp_bit_defs.h"
-#include "esp_attr.h"
-#include "xtensa/config/core.h"
-
 #ifdef __cplusplus
 extern "C" {
 #endif