i2c changes for v2020.10 - Add support for I2C controllers found on Octeon II/III and Octeon TX TX2 SoC platforms. - Add I2C controller support for Cortina Access CAxxxx SoCs - new rtc methods, rtc command, and tests - imx_lpi2c: Improve the codes to use private data - stm32f7_i2c.c: Add new compatible "st,stm32mp15-i2c" - stm32f7_i2c.c: Add Fast Mode Plus support - pwm: Add PWM driver for SiFive SoC