esp32 :Fix i2c

Author: Vincent1-python

ports/esp32/machine_i2c.c

@@ -30,6 +30,7 @@
 #include "extmod/modmachine.h"
 
 #include "driver/i2c_master.h"
+#include "hal/i2c_ll.h"
 
 #if MICROPY_PY_MACHINE_I2C || MICROPY_PY_MACHINE_SOFTI2C
 
@@ -56,6 +57,7 @@
 #if SOC_I2C_SUPPORT_XTAL
 #if CONFIG_XTAL_FREQ > 0
 #define I2C_SCLK_FREQ (CONFIG_XTAL_FREQ * 1000000)
+#else
 #error "I2C uses XTAL but no configured freq"
 #endif // CONFIG_XTAL_FREQ
 #elif SOC_I2C_SUPPORT_APB