i.MX defconfig changes for 5.3: * imx_v6_v7_defconfig: - PCF857X GPIO expander - SIOX bus driver - thermal statistics - TPM PWM driver - OV2680 camera driver - SNVS LPGPR NVMEM driver - i.MX DT based cpufreq driver * arm64 defconfig built-in: - i.MX8MM pinctrl and clock - i.MX LPI2C driver - ROHM_BD718XX PMIC - OCOTP NVMEM support - i.MX SCU based SoC bus driver * arm64 defconfig modules: - i.MX SPI driver - i.MX system controller watchdog - SNVS RTC driver - ISL29018 light and proximity sensor driver - MPL3115 pressure sensor driver - i.MX8 DT based cpufreq support - QorIQ Thermal Monitoring Unit driver - SNVS power key driver