fix(esp_hw_support): fix wrong APB clock freq on retenion

components/esp_hw_support/port/esp32c3/rtc_clk.c

@@ -316,6 +316,11 @@ void rtc_clk_cpu_set_to_default_config(void)
     rtc_clk_cpu_freq_to_xtal(freq_mhz, 1);
 }
 
+void rtc_clk_cpu_freq_set_xtal_for_sleep(void)
+{
+    rtc_clk_cpu_freq_set_xtal();
+}
+
 /**
  * Switch to use XTAL as the CPU clock source.
  * Must satisfy: cpu_freq = XTAL_FREQ / div.