i2c: stm32f7: Add SMBus Host-Notify protocol support

Rely on the core functions to implement the host-notify
protocol via the a I2C slave device.

Signed-off-by: Alain Volmat <alain.volmat@st.com>
Reviewed-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
2 files changed