kconfig: refactor xtal freq kconfig to common configuration item

components/soc/esp32/include/soc/Kconfig.soc_caps.in

@@ -127,6 +127,18 @@ config SOC_DPORT_WORKAROUND_DIS_INTERRUPT_LVL
     int
     default 5
 
+config SOC_XTAL_SUPPORT_26M
+    bool
+    default y
+
+config SOC_XTAL_SUPPORT_40M
+    bool
+    default y
+
+config SOC_XTAL_SUPPORT_AUTO_DETECT
+    bool
+    default y
+
 config SOC_ADC_RTC_CTRL_SUPPORTED
     bool
     default y

components/soc/esp32/include/soc/rtc.h

@@ -122,7 +122,7 @@ typedef struct rtc_clk_config_s {
  * Default initializer for rtc_clk_config_t
  */
 #define RTC_CLK_CONFIG_DEFAULT() { \
-    .xtal_freq = RTC_XTAL_FREQ_AUTO, \
+    .xtal_freq = CONFIG_XTAL_FREQ, \
     .cpu_freq_mhz = 80, \
     .fast_clk_src = SOC_RTC_FAST_CLK_SRC_RC_FAST, \
     .slow_clk_src = SOC_RTC_SLOW_CLK_SRC_RC_SLOW, \

components/soc/esp32/include/soc/soc_caps.h

@@ -96,6 +96,11 @@
 #endif // SOC_CAPS_ECO_VER < 2
 #define SOC_DPORT_WORKAROUND_DIS_INTERRUPT_LVL (5U)
 
+/*-------------------------- XTAL CAPS ---------------------------------------*/
+#define SOC_XTAL_SUPPORT_26M            1
+#define SOC_XTAL_SUPPORT_40M            1
+#define SOC_XTAL_SUPPORT_AUTO_DETECT    1
+
 /*-------------------------- ADC CAPS ----------------------------------------*/
 /*!< SAR ADC Module*/
 #define SOC_ADC_RTC_CTRL_SUPPORTED              1