fix(drivers/st/pmic): initialize i2c_state
fix(drivers/st/pmic): initialize i2c_state

Make sure that i2c->i2c_state is correctly initialized
with I2C_STATE_RESET value this avoid hi2c->lock to not
be set to 0 when calling stm32_i2c_init during platform
suspend/resume operations.

Change-Id: I3b4c1f9115589325eb256789a1764c322741db7d
Signed-off-by: Benjamin Gaignard <6ee0a5bd5732730b243a6755a8505d5db9232205@st.com>
Signed-off-by: Yann Gautier <e753f6969c288905606e3c07464886d4f1fc1be0@st.com>

achingupta/arm-trusted-firmware,achingupta/arm-trusted-firmware