refactor(bod): Move brownout handling file from esp_system to esp_hw_support

components/soc/esp32c5/include/soc/Kconfig.soc_caps.in

@@ -1215,10 +1215,6 @@ config SOC_LP_TIMER_BIT_WIDTH_HI
     int
     default 16
 
-config SOC_LP_TIMER_BOD_SHARE_INTR_SOURCE
-    bool
-    default y
-
 config SOC_TIMER_GROUPS
     int
     default 2

components/soc/esp32c5/include/soc/soc_caps.h

@@ -485,7 +485,6 @@
 /*-------------------------- LP_TIMER CAPS ----------------------------------*/
 #define SOC_LP_TIMER_BIT_WIDTH_LO           32 // Bit width of lp_timer low part
 #define SOC_LP_TIMER_BIT_WIDTH_HI           16 // Bit width of lp_timer high part
-#define SOC_LP_TIMER_BOD_SHARE_INTR_SOURCE 1   //LP timer and brownout detector share the interrupt source
 
 /*--------------------------- TIMER GROUP CAPS ---------------------------------------*/
 #define SOC_TIMER_GROUPS                  (2)

components/soc/esp32c5/power_supply_periph.c

@@ -0,0 +1,11 @@
+/*
+ * SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "soc/power_supply_periph.h"
+
+const power_supply_signal_conn_t power_supply_periph_signal = {
+    .irq = ETS_LP_RTC_TIMER_INTR_SOURCE,
+};