ITE: drivers/i2c: create pinmux phandle to the I2C driver node

Create the pinmux phandle to the I2C driver node in the
devicetree. When the pinmux_pin_set function in
i2c_it8xxx2_init can refer to the setting of this phandle.
It is more flexible to use.

Signed-off-by: Tim Lin <tim2.lin@ite.corp-partner.google.com>
4 files changed