Sometimes, libphy.a call phy_enter_critical() to protect accessing
critical sections, such like operating on I2C, but it may not effect
when both the CPU core call it. It may cause accessing I2C blocking
and cannot recover by esp_restart(), until do HW reboot.
Using xxx_periph.h in whole IDF instead of xxx_reg.h, xxx_struct.h, xxx_channel.h ... .
Cleaned up header files from unnecessary headers (releated to soc/... headers).
