fix(esp_eth): fixes EMAC MDC out of the range issue

Closes https://github.com/espressif/esp-idf/issues/17984

components/hal/esp32p4/clk_tree_hal.c

@@ -45,7 +45,7 @@ static uint32_t clk_hal_mem_get_freq_hz(void)
     return clk_hal_cpu_get_freq_hz() / clk_ll_mem_get_divider();
 }
 
-static uint32_t clk_hal_sys_get_freq_hz(void)
+uint32_t clk_hal_sys_get_freq_hz(void)
 {
     return clk_hal_mem_get_freq_hz() / clk_ll_sys_get_divider();
 }

components/hal/esp32p4/include/hal/emac_ll.h

@@ -20,6 +20,7 @@
 #include "hal/eth_types.h"
 #include "soc/emac_dma_struct.h"
 #include "soc/emac_mac_struct.h"
+#include "soc/clk_tree_defs.h"
 
 #include "soc/hp_system_struct.h"
 #include "soc/hp_sys_clkrst_struct.h"
@@ -578,6 +579,12 @@ static inline void emac_ll_receive_poll_demand(emac_dma_dev_t *dma_regs, uint32_
 /*************** End of dma regs operation *********************/
 
 
+static inline soc_module_clk_t emac_ll_get_csr_clk_src(void)
+{
+    // Source of the ESP32P4 EMAC CRS clock is SYS clock.
+    return SOC_MOD_CLK_SYS;
+}
+
 /**
  * @brief Enable the bus clock for the EMAC module
  *